21961444180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{47911}}^1$

素因数の和:48017

約数の個数: 96

約数和(自身を含む): 52062329088

約数和(自身を除く): 30100884908

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 41, 43, 52, 65, 82, 86, 130, 164, 172, 205, 215, 260, 410, 430, 533, 559, 820, 860, 1066, 1118, 1763, 2132, 2236, 2665, 2795, 3526, 5330, 5590, 7052, 8815, 10660, 11180, 17630, 22919, 35260, 45838, 47911, 91676, 95822, 114595, 191644, 229190, 239555, 458380, 479110, 622843, 958220, 1245686, 1964351, 2060173, 2491372, 3114215, 3928702, 4120346, 6228430, 7857404, 8240692, 9821755, 10300865, 12456860, 19643510, 20601730, 25536563, 26782249, 39287020, 41203460, 51073126, 53564498, 84467093, 102146252, 107128996, 127682815, 133911245, 168934186, 255365630, 267822490, 337868372, 422335465, 510731260, 535644980, 844670930, 1098072209, 1689341860, 2196144418, 4392288836, 5490361045, 10980722090, 21961444180]

約数ペア:

[(1, 21961444180), (2, 10980722090), (4, 5490361045), (5, 4392288836), (10, 2196144418), (13, 1689341860), (20, 1098072209), (26, 844670930), (41, 535644980), (43, 510731260), (52, 422335465), (65, 337868372), (82, 267822490), (86, 255365630), (130, 168934186), (164, 133911245), (172, 127682815), (205, 107128996), (215, 102146252), (260, 84467093), (410, 53564498), (430, 51073126), (533, 41203460), (559, 39287020), (820, 26782249), (860, 25536563), (1066, 20601730), (1118, 19643510), (1763, 12456860), (2132, 10300865), (2236, 9821755), (2665, 8240692), (2795, 7857404), (3526, 6228430), (5330, 4120346), (5590, 3928702), (7052, 3114215), (8815, 2491372), (10660, 2060173), (11180, 1964351), (17630, 1245686), (22919, 958220), (35260, 622843), (45838, 479110), (47911, 458380), (91676, 239555), (95822, 229190), (114595, 191644)]