18858526

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{157}}^1$

素因数の和:316

約数の個数: 32

約数和(自身を含む): 31284000

約数和(自身を除く): 12425474

約数列:

[1, 2, 19, 29, 38, 58, 109, 157, 218, 314, 551, 1102, 2071, 2983, 3161, 4142, 4553, 5966, 6322, 9106, 17113, 34226, 60059, 86507, 120118, 173014, 325147, 496277, 650294, 992554, 9429263, 18858526]

約数ペア:

[(1, 18858526), (2, 9429263), (19, 992554), (29, 650294), (38, 496277), (58, 325147), (109, 173014), (157, 120118), (218, 86507), (314, 60059), (551, 34226), (1102, 17113), (2071, 9106), (2983, 6322), (3161, 5966), (4142, 4553)]