20993208

素因数分解:

$2^3\times 3^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{503}}^1$

素因数の和:596

約数の個数: 64

約数和(自身を含む): 55157760

約数和(自身を除く): 34164552

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 37, 47, 74, 94, 111, 141, 148, 188, 222, 282, 296, 376, 444, 503, 564, 888, 1006, 1128, 1509, 1739, 2012, 3018, 3478, 4024, 5217, 6036, 6956, 10434, 12072, 13912, 18611, 20868, 23641, 37222, 41736, 47282, 55833, 70923, 74444, 94564, 111666, 141846, 148888, 189128, 223332, 283692, 446664, 567384, 874717, 1749434, 2624151, 3498868, 5248302, 6997736, 10496604, 20993208]

約数ペア:

[(1, 20993208), (2, 10496604), (3, 6997736), (4, 5248302), (6, 3498868), (8, 2624151), (12, 1749434), (24, 874717), (37, 567384), (47, 446664), (74, 283692), (94, 223332), (111, 189128), (141, 148888), (148, 141846), (188, 111666), (222, 94564), (282, 74444), (296, 70923), (376, 55833), (444, 47282), (503, 41736), (564, 37222), (888, 23641), (1006, 20868), (1128, 18611), (1509, 13912), (1739, 12072), (2012, 10434), (3018, 6956), (3478, 6036), (4024, 5217)]