21438270

素因数分解:

$2^1\times 3^4\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1$

素因数の和:244

約数の個数: 160

約数和(自身を含む): 69696000

約数和(自身を除く): 48257730

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 19, 21, 27, 30, 35, 38, 42, 45, 54, 57, 63, 70, 81, 90, 95, 105, 114, 126, 133, 135, 162, 171, 189, 190, 199, 210, 266, 270, 285, 315, 342, 378, 398, 399, 405, 513, 567, 570, 597, 630, 665, 798, 810, 855, 945, 995, 1026, 1134, 1194, 1197, 1330, 1393, 1539, 1710, 1791, 1890, 1990, 1995, 2394, 2565, 2786, 2835, 2985, 3078, 3582, 3591, 3781, 3990, 4179, 5130, 5373, 5670, 5970, 5985, 6965, 7182, 7562, 7695, 8358, 8955, 10746, 10773, 11343, 11970, 12537, 13930, 15390, 16119, 17910, 17955, 18905, 20895, 21546, 22686, 25074, 26467, 26865, 32238, 34029, 35910, 37611, 37810, 41790, 52934, 53730, 53865, 56715, 62685, 68058, 75222, 79401, 80595, 102087, 107730, 112833, 113430, 125370, 132335, 158802, 161190, 170145, 188055, 204174, 225666, 238203, 264670, 306261, 340290, 376110, 397005, 476406, 510435, 564165, 612522, 714609, 794010, 1020870, 1128330, 1191015, 1429218, 1531305, 2143827, 2382030, 3062610, 3573045, 4287654, 7146090, 10719135, 21438270]

約数ペア:

[(1, 21438270), (2, 10719135), (3, 7146090), (5, 4287654), (6, 3573045), (7, 3062610), (9, 2382030), (10, 2143827), (14, 1531305), (15, 1429218), (18, 1191015), (19, 1128330), (21, 1020870), (27, 794010), (30, 714609), (35, 612522), (38, 564165), (42, 510435), (45, 476406), (54, 397005), (57, 376110), (63, 340290), (70, 306261), (81, 264670), (90, 238203), (95, 225666), (105, 204174), (114, 188055), (126, 170145), (133, 161190), (135, 158802), (162, 132335), (171, 125370), (189, 113430), (190, 112833), (199, 107730), (210, 102087), (266, 80595), (270, 79401), (285, 75222), (315, 68058), (342, 62685), (378, 56715), (398, 53865), (399, 53730), (405, 52934), (513, 41790), (567, 37810), (570, 37611), (597, 35910), (630, 34029), (665, 32238), (798, 26865), (810, 26467), (855, 25074), (945, 22686), (995, 21546), (1026, 20895), (1134, 18905), (1194, 17955), (1197, 17910), (1330, 16119), (1393, 15390), (1539, 13930), (1710, 12537), (1791, 11970), (1890, 11343), (1990, 10773), (1995, 10746), (2394, 8955), (2565, 8358), (2786, 7695), (2835, 7562), (2985, 7182), (3078, 6965), (3582, 5985), (3591, 5970), (3781, 5670), (3990, 5373), (4179, 5130)]