21052710

素因数分解:

$2^1\times 3^4\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1$

素因数の和:152

約数の個数: 160

約数和(自身を含む): 66908160

約数和(自身を除く): 45855450

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 47, 54, 63, 70, 79, 81, 90, 94, 105, 126, 135, 141, 158, 162, 189, 210, 235, 237, 270, 282, 315, 329, 378, 395, 405, 423, 470, 474, 553, 567, 630, 658, 705, 711, 790, 810, 846, 945, 987, 1106, 1134, 1185, 1269, 1410, 1422, 1645, 1659, 1890, 1974, 2115, 2133, 2370, 2538, 2765, 2835, 2961, 3290, 3318, 3555, 3713, 3807, 4230, 4266, 4935, 4977, 5530, 5670, 5922, 6345, 6399, 7110, 7426, 7614, 8295, 8883, 9870, 9954, 10665, 11139, 12690, 12798, 14805, 14931, 16590, 17766, 18565, 19035, 21330, 22278, 24885, 25991, 26649, 29610, 29862, 31995, 33417, 37130, 38070, 44415, 44793, 49770, 51982, 53298, 55695, 63990, 66834, 74655, 77973, 88830, 89586, 100251, 111390, 129955, 133245, 149310, 155946, 167085, 200502, 223965, 233919, 259910, 266490, 300753, 334170, 389865, 447930, 467838, 501255, 601506, 701757, 779730, 1002510, 1169595, 1403514, 1503765, 2105271, 2339190, 3007530, 3508785, 4210542, 7017570, 10526355, 21052710]

約数ペア:

[(1, 21052710), (2, 10526355), (3, 7017570), (5, 4210542), (6, 3508785), (7, 3007530), (9, 2339190), (10, 2105271), (14, 1503765), (15, 1403514), (18, 1169595), (21, 1002510), (27, 779730), (30, 701757), (35, 601506), (42, 501255), (45, 467838), (47, 447930), (54, 389865), (63, 334170), (70, 300753), (79, 266490), (81, 259910), (90, 233919), (94, 223965), (105, 200502), (126, 167085), (135, 155946), (141, 149310), (158, 133245), (162, 129955), (189, 111390), (210, 100251), (235, 89586), (237, 88830), (270, 77973), (282, 74655), (315, 66834), (329, 63990), (378, 55695), (395, 53298), (405, 51982), (423, 49770), (470, 44793), (474, 44415), (553, 38070), (567, 37130), (630, 33417), (658, 31995), (705, 29862), (711, 29610), (790, 26649), (810, 25991), (846, 24885), (945, 22278), (987, 21330), (1106, 19035), (1134, 18565), (1185, 17766), (1269, 16590), (1410, 14931), (1422, 14805), (1645, 12798), (1659, 12690), (1890, 11139), (1974, 10665), (2115, 9954), (2133, 9870), (2370, 8883), (2538, 8295), (2765, 7614), (2835, 7426), (2961, 7110), (3290, 6399), (3318, 6345), (3555, 5922), (3713, 5670), (3807, 5530), (4230, 4977), (4266, 4935)]