18778736

素因数分解:

$2^4\times {\mathrm{641}}^1\times {\mathrm{1831}}^1$

素因数の和:2480

約数の個数: 20

約数和(自身を含む): 36460464

約数和(自身を除く): 17681728

約数列:

[1, 2, 4, 8, 16, 641, 1282, 1831, 2564, 3662, 5128, 7324, 10256, 14648, 29296, 1173671, 2347342, 4694684, 9389368, 18778736]

約数ペア:

[(1, 18778736), (2, 9389368), (4, 4694684), (8, 2347342), (16, 1173671), (641, 29296), (1282, 14648), (1831, 10256), (2564, 7324), (3662, 5128)]