21223648420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2633207}}^1$

素因数の和:2633260

約数の個数: 48

約数和(自身を含む): 49546441728

約数和(自身を除く): 28322793308

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 2015, 4030, 8060, 2633207, 5266414, 10532828, 13166035, 26332070, 34231691, 52664140, 68463382, 81629417, 136926764, 163258834, 171158455, 326517668, 342316910, 408147085, 684633820, 816294170, 1061182421, 1632588340, 2122364842, 4244729684, 5305912105, 10611824210, 21223648420]

約数ペア:

[(1, 21223648420), (2, 10611824210), (4, 5305912105), (5, 4244729684), (10, 2122364842), (13, 1632588340), (20, 1061182421), (26, 816294170), (31, 684633820), (52, 408147085), (62, 342316910), (65, 326517668), (124, 171158455), (130, 163258834), (155, 136926764), (260, 81629417), (310, 68463382), (403, 52664140), (620, 34231691), (806, 26332070), (1612, 13166035), (2015, 10532828), (4030, 5266414), (8060, 2633207)]