18897848

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{181}}^1\times {\mathrm{421}}^1$

素因数の和:639

約数の個数: 32

約数和(自身を含む): 36865920

約数和(自身を除く): 17968072

約数列:

[1, 2, 4, 8, 31, 62, 124, 181, 248, 362, 421, 724, 842, 1448, 1684, 3368, 5611, 11222, 13051, 22444, 26102, 44888, 52204, 76201, 104408, 152402, 304804, 609608, 2362231, 4724462, 9448924, 18897848]

約数ペア:

[(1, 18897848), (2, 9448924), (4, 4724462), (8, 2362231), (31, 609608), (62, 304804), (124, 152402), (181, 104408), (248, 76201), (362, 52204), (421, 44888), (724, 26102), (842, 22444), (1448, 13051), (1684, 11222), (3368, 5611)]