31678047

素因数分解:

$3^4\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1$

素因数の和:269

約数の個数: 40

約数和(自身を含む): 49553856

約数和(自身を除く): 17875809

約数列:

[1, 3, 9, 27, 47, 53, 81, 141, 157, 159, 423, 471, 477, 1269, 1413, 1431, 2491, 3807, 4239, 4293, 7379, 7473, 8321, 12717, 22137, 22419, 24963, 66411, 67257, 74889, 199233, 201771, 224667, 391087, 597699, 674001, 1173261, 3519783, 10559349, 31678047]

約数ペア:

[(1, 31678047), (3, 10559349), (9, 3519783), (27, 1173261), (47, 674001), (53, 597699), (81, 391087), (141, 224667), (157, 201771), (159, 199233), (423, 74889), (471, 67257), (477, 66411), (1269, 24963), (1413, 22419), (1431, 22137), (2491, 12717), (3807, 8321), (4239, 7473), (4293, 7379)]