686702007

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{70583}}^1$

素因数の和:70659

約数の個数: 24

約数和(自身を含む): 1057065984

約数和(自身を除く): 370363977

約数列:

[1, 3, 9, 23, 47, 69, 141, 207, 423, 1081, 3243, 9729, 70583, 211749, 635247, 1623409, 3317401, 4870227, 9952203, 14610681, 29856609, 76300223, 228900669, 686702007]

約数ペア:

[(1, 686702007), (3, 228900669), (9, 76300223), (23, 29856609), (47, 14610681), (69, 9952203), (141, 4870227), (207, 3317401), (423, 1623409), (1081, 635247), (3243, 211749), (9729, 70583)]