20451884

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{67}}^3$

素因数の和:222

約数の個数: 24

約数和(自身を含む): 38470320

約数和(自身を除く): 18018436

約数列:

[1, 2, 4, 17, 34, 67, 68, 134, 268, 1139, 2278, 4489, 4556, 8978, 17956, 76313, 152626, 300763, 305252, 601526, 1203052, 5112971, 10225942, 20451884]

約数ペア:

[(1, 20451884), (2, 10225942), (4, 5112971), (17, 1203052), (34, 601526), (67, 305252), (68, 300763), (134, 152626), (268, 76313), (1139, 17956), (2278, 8978), (4489, 4556)]