8921211

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1$

素因数の和:251

約数の個数: 32

約数和(自身を含む): 13590528

約数和(自身を除く): 4669317

約数列:

[1, 3, 13, 31, 39, 47, 93, 141, 157, 403, 471, 611, 1209, 1457, 1833, 2041, 4371, 4867, 6123, 7379, 14601, 18941, 22137, 56823, 63271, 95927, 189813, 228749, 287781, 686247, 2973737, 8921211]

約数ペア:

[(1, 8921211), (3, 2973737), (13, 686247), (31, 287781), (39, 228749), (47, 189813), (93, 95927), (141, 63271), (157, 56823), (403, 22137), (471, 18941), (611, 14601), (1209, 7379), (1457, 6123), (1833, 4867), (2041, 4371)]