20756348

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{257}}^1\times {\mathrm{331}}^1$

素因数の和:653

約数の個数: 24

約数和(自身を含む): 37174704

約数和(自身を除く): 16418356

約数列:

[1, 2, 4, 61, 122, 244, 257, 331, 514, 662, 1028, 1324, 15677, 20191, 31354, 40382, 62708, 80764, 85067, 170134, 340268, 5189087, 10378174, 20756348]

約数ペア:

[(1, 20756348), (2, 10378174), (4, 5189087), (61, 340268), (122, 170134), (244, 85067), (257, 80764), (331, 62708), (514, 40382), (662, 31354), (1028, 20191), (1324, 15677)]