21255270

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{587}}^1$

素因数の和:685

約数の個数: 64

約数和(自身を含む): 54867456

約数和(自身を除く): 33612186

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 71, 85, 102, 142, 170, 213, 255, 355, 426, 510, 587, 710, 1065, 1174, 1207, 1761, 2130, 2414, 2935, 3522, 3621, 5870, 6035, 7242, 8805, 9979, 12070, 17610, 18105, 19958, 29937, 36210, 41677, 49895, 59874, 83354, 99790, 125031, 149685, 208385, 250062, 299370, 416770, 625155, 708509, 1250310, 1417018, 2125527, 3542545, 4251054, 7085090, 10627635, 21255270]

約数ペア:

[(1, 21255270), (2, 10627635), (3, 7085090), (5, 4251054), (6, 3542545), (10, 2125527), (15, 1417018), (17, 1250310), (30, 708509), (34, 625155), (51, 416770), (71, 299370), (85, 250062), (102, 208385), (142, 149685), (170, 125031), (213, 99790), (255, 83354), (355, 59874), (426, 49895), (510, 41677), (587, 36210), (710, 29937), (1065, 19958), (1174, 18105), (1207, 17610), (1761, 12070), (2130, 9979), (2414, 8805), (2935, 7242), (3522, 6035), (3621, 5870)]