18903728

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{69499}}^1$

素因数の和:69524

約数の個数: 20

約数和(自身を含む): 38781000

約数和(自身を除く): 19877272

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 69499, 138998, 277996, 555992, 1111984, 1181483, 2362966, 4725932, 9451864, 18903728]

約数ペア:

[(1, 18903728), (2, 9451864), (4, 4725932), (8, 2362966), (16, 1181483), (17, 1111984), (34, 555992), (68, 277996), (136, 138998), (272, 69499)]