21128909724

素因数分解:

$2^2\times 3^3\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{78791}}^1$

素因数の和:79008

約数の個数: 96

約数和(自身を含む): 59302010880

約数和(自身を除く): 38173101156

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 108, 117, 156, 191, 234, 351, 382, 468, 573, 702, 764, 1146, 1404, 1719, 2292, 2483, 3438, 4966, 5157, 6876, 7449, 9932, 10314, 14898, 20628, 22347, 29796, 44694, 67041, 78791, 89388, 134082, 157582, 236373, 268164, 315164, 472746, 709119, 945492, 1024283, 1418238, 2048566, 2127357, 2836476, 3072849, 4097132, 4254714, 6145698, 8509428, 9218547, 12291396, 15049081, 18437094, 27655641, 30098162, 36874188, 45147243, 55311282, 60196324, 90294486, 110622564, 135441729, 180588972, 195638053, 270883458, 391276106, 406325187, 541766916, 586914159, 782552212, 812650374, 1173828318, 1625300748, 1760742477, 2347656636, 3521484954, 5282227431, 7042969908, 10564454862, 21128909724]

約数ペア:

[(1, 21128909724), (2, 10564454862), (3, 7042969908), (4, 5282227431), (6, 3521484954), (9, 2347656636), (12, 1760742477), (13, 1625300748), (18, 1173828318), (26, 812650374), (27, 782552212), (36, 586914159), (39, 541766916), (52, 406325187), (54, 391276106), (78, 270883458), (108, 195638053), (117, 180588972), (156, 135441729), (191, 110622564), (234, 90294486), (351, 60196324), (382, 55311282), (468, 45147243), (573, 36874188), (702, 30098162), (764, 27655641), (1146, 18437094), (1404, 15049081), (1719, 12291396), (2292, 9218547), (2483, 8509428), (3438, 6145698), (4966, 4254714), (5157, 4097132), (6876, 3072849), (7449, 2836476), (9932, 2127357), (10314, 2048566), (14898, 1418238), (20628, 1024283), (22347, 945492), (29796, 709119), (44694, 472746), (67041, 315164), (78791, 268164), (89388, 236373), (134082, 157582)]