18658838

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{251}}^1$

素因数の和:404

約数の個数: 32

約数和(自身を含む): 31933440

約数和(自身を除く): 13274602

約数列:

[1, 2, 11, 22, 31, 62, 109, 218, 251, 341, 502, 682, 1199, 2398, 2761, 3379, 5522, 6758, 7781, 15562, 27359, 37169, 54718, 74338, 85591, 171182, 300949, 601898, 848129, 1696258, 9329419, 18658838]

約数ペア:

[(1, 18658838), (2, 9329419), (11, 1696258), (22, 848129), (31, 601898), (62, 300949), (109, 171182), (218, 85591), (251, 74338), (341, 54718), (502, 37169), (682, 27359), (1199, 15562), (2398, 7781), (2761, 6758), (3379, 5522)]