20039061

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{257}}^1$

素因数の和:393

約数の個数: 32

約数和(自身を含む): 31703040

約数和(自身を除く): 11663979

約数列:

[1, 3, 7, 21, 47, 79, 141, 237, 257, 329, 553, 771, 987, 1659, 1799, 3713, 5397, 11139, 12079, 20303, 25991, 36237, 60909, 77973, 84553, 142121, 253659, 426363, 954241, 2862723, 6679687, 20039061]

約数ペア:

[(1, 20039061), (3, 6679687), (7, 2862723), (21, 954241), (47, 426363), (79, 253659), (141, 142121), (237, 84553), (257, 77973), (329, 60909), (553, 36237), (771, 25991), (987, 20303), (1659, 12079), (1799, 11139), (3713, 5397)]