21096688291

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{199}}^1\times {\mathrm{863}}^1$

素因数の和:1208

約数の個数: 48

約数和(自身を含む): 26002944000

約数和(自身を除く): 4906255709

約数列:

[1, 7, 23, 49, 109, 161, 199, 763, 863, 1127, 1393, 2507, 4577, 5341, 6041, 9751, 17549, 19849, 21691, 32039, 42287, 94067, 122843, 138943, 151837, 171737, 224273, 498893, 658469, 972601, 1062859, 1202159, 2163541, 3492251, 3949951, 4609283, 8415113, 15144787, 18719333, 24445757, 27649657, 106013509, 131035331, 193547599, 430544659, 917247317, 3013812613, 21096688291]

約数ペア:

[(1, 21096688291), (7, 3013812613), (23, 917247317), (49, 430544659), (109, 193547599), (161, 131035331), (199, 106013509), (763, 27649657), (863, 24445757), (1127, 18719333), (1393, 15144787), (2507, 8415113), (4577, 4609283), (5341, 3949951), (6041, 3492251), (9751, 2163541), (17549, 1202159), (19849, 1062859), (21691, 972601), (32039, 658469), (42287, 498893), (94067, 224273), (122843, 171737), (138943, 151837)]