678330818

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{7691}}^1$

素因数の和:7934

約数の個数: 32

約数和(自身を含む): 1174106880

約数和(自身を除く): 495776062

約数列:

[1, 2, 11, 19, 22, 38, 209, 211, 418, 422, 2321, 4009, 4642, 7691, 8018, 15382, 44099, 84601, 88198, 146129, 169202, 292258, 1607419, 1622801, 3214838, 3245602, 17850811, 30833219, 35701622, 61666438, 339165409, 678330818]

約数ペア:

[(1, 678330818), (2, 339165409), (11, 61666438), (19, 35701622), (22, 30833219), (38, 17850811), (209, 3245602), (211, 3214838), (418, 1622801), (422, 1607419), (2321, 292258), (4009, 169202), (4642, 146129), (7691, 88198), (8018, 84601), (15382, 44099)]