20451952

素因数分解:

$2^4\times {\mathrm{17}}^2\times {\mathrm{4423}}^1$

素因数の和:4465

約数の個数: 30

約数和(自身を含む): 42103208

約数和(自身を除く): 21651256

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 289, 578, 1156, 2312, 4423, 4624, 8846, 17692, 35384, 70768, 75191, 150382, 300764, 601528, 1203056, 1278247, 2556494, 5112988, 10225976, 20451952]

約数ペア:

[(1, 20451952), (2, 10225976), (4, 5112988), (8, 2556494), (16, 1278247), (17, 1203056), (34, 601528), (68, 300764), (136, 150382), (272, 75191), (289, 70768), (578, 35384), (1156, 17692), (2312, 8846), (4423, 4624)]