21805710

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{23447}}^1$

素因数の和:23488

約数の個数: 32

約数和(自身を含む): 54024192

約数和(自身を除く): 32218482

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 31, 62, 93, 155, 186, 310, 465, 930, 23447, 46894, 70341, 117235, 140682, 234470, 351705, 703410, 726857, 1453714, 2180571, 3634285, 4361142, 7268570, 10902855, 21805710]

約数ペア:

[(1, 21805710), (2, 10902855), (3, 7268570), (5, 4361142), (6, 3634285), (10, 2180571), (15, 1453714), (30, 726857), (31, 703410), (62, 351705), (93, 234470), (155, 140682), (186, 117235), (310, 70341), (465, 46894), (930, 23447)]