18694768

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{1373}}^1$

素因数の和:1441

約数の個数: 40

約数和(自身を含む): 38845728

約数和(自身を除く): 20150960

約数列:

[1, 2, 4, 8, 16, 23, 37, 46, 74, 92, 148, 184, 296, 368, 592, 851, 1373, 1702, 2746, 3404, 5492, 6808, 10984, 13616, 21968, 31579, 50801, 63158, 101602, 126316, 203204, 252632, 406408, 505264, 812816, 1168423, 2336846, 4673692, 9347384, 18694768]

約数ペア:

[(1, 18694768), (2, 9347384), (4, 4673692), (8, 2336846), (16, 1168423), (23, 812816), (37, 505264), (46, 406408), (74, 252632), (92, 203204), (148, 126316), (184, 101602), (296, 63158), (368, 50801), (592, 31579), (851, 21968), (1373, 13616), (1702, 10984), (2746, 6808), (3404, 5492)]