245648991

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{401}}^1\times {\mathrm{941}}^1$

素因数の和:1383

約数の個数: 32

約数和(自身を含む): 387772416

約数和(自身を除く): 142123425

約数列:

[1, 3, 7, 21, 31, 93, 217, 401, 651, 941, 1203, 2807, 2823, 6587, 8421, 12431, 19761, 29171, 37293, 87017, 87513, 204197, 261051, 377341, 612591, 1132023, 2641387, 7924161, 11697571, 35092713, 81882997, 245648991]

約数ペア:

[(1, 245648991), (3, 81882997), (7, 35092713), (21, 11697571), (31, 7924161), (93, 2641387), (217, 1132023), (401, 612591), (651, 377341), (941, 261051), (1203, 204197), (2807, 87513), (2823, 87017), (6587, 37293), (8421, 29171), (12431, 19761)]