21395010

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{461}}^1$

素因数の和:508

約数の個数: 128

約数和(自身を含む): 67060224

約数和(自身を除く): 45665214

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 17, 21, 26, 30, 34, 35, 39, 42, 51, 65, 70, 78, 85, 91, 102, 105, 119, 130, 170, 182, 195, 210, 221, 238, 255, 273, 357, 390, 442, 455, 461, 510, 546, 595, 663, 714, 910, 922, 1105, 1190, 1326, 1365, 1383, 1547, 1785, 2210, 2305, 2730, 2766, 3094, 3227, 3315, 3570, 4610, 4641, 5993, 6454, 6630, 6915, 7735, 7837, 9282, 9681, 11986, 13830, 15470, 15674, 16135, 17979, 19362, 23205, 23511, 29965, 32270, 35958, 39185, 41951, 46410, 47022, 48405, 54859, 59930, 78370, 83902, 89895, 96810, 101881, 109718, 117555, 125853, 164577, 179790, 203762, 209755, 235110, 251706, 274295, 305643, 329154, 419510, 509405, 548590, 611286, 629265, 713167, 822885, 1018810, 1258530, 1426334, 1528215, 1645770, 2139501, 3056430, 3565835, 4279002, 7131670, 10697505, 21395010]

約数ペア:

[(1, 21395010), (2, 10697505), (3, 7131670), (5, 4279002), (6, 3565835), (7, 3056430), (10, 2139501), (13, 1645770), (14, 1528215), (15, 1426334), (17, 1258530), (21, 1018810), (26, 822885), (30, 713167), (34, 629265), (35, 611286), (39, 548590), (42, 509405), (51, 419510), (65, 329154), (70, 305643), (78, 274295), (85, 251706), (91, 235110), (102, 209755), (105, 203762), (119, 179790), (130, 164577), (170, 125853), (182, 117555), (195, 109718), (210, 101881), (221, 96810), (238, 89895), (255, 83902), (273, 78370), (357, 59930), (390, 54859), (442, 48405), (455, 47022), (461, 46410), (510, 41951), (546, 39185), (595, 35958), (663, 32270), (714, 29965), (910, 23511), (922, 23205), (1105, 19362), (1190, 17979), (1326, 16135), (1365, 15674), (1383, 15470), (1547, 13830), (1785, 11986), (2210, 9681), (2305, 9282), (2730, 7837), (2766, 7735), (3094, 6915), (3227, 6630), (3315, 6454), (3570, 5993), (4610, 4641)]