19905318

素因数分解:

$2^1\times 3^3\times {\mathrm{211}}^1\times {\mathrm{1747}}^1$

素因数の和:1969

約数の個数: 32

約数和(自身を含む): 44469120

約数和(自身を除く): 24563802

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 211, 422, 633, 1266, 1747, 1899, 3494, 3798, 5241, 5697, 10482, 11394, 15723, 31446, 47169, 94338, 368617, 737234, 1105851, 2211702, 3317553, 6635106, 9952659, 19905318]

約数ペア:

[(1, 19905318), (2, 9952659), (3, 6635106), (6, 3317553), (9, 2211702), (18, 1105851), (27, 737234), (54, 368617), (211, 94338), (422, 47169), (633, 31446), (1266, 15723), (1747, 11394), (1899, 10482), (3494, 5697), (3798, 5241)]