20826015

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{241}}^1\times {\mathrm{823}}^1$

素因数の和:1079

約数の個数: 32

約数和(自身を含む): 38286336

約数和(自身を除く): 17460321

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 241, 723, 823, 1205, 1687, 2469, 3615, 4115, 5061, 5761, 8435, 12345, 17283, 25305, 28805, 86415, 198343, 595029, 991715, 1388401, 2975145, 4165203, 6942005, 20826015]

約数ペア:

[(1, 20826015), (3, 6942005), (5, 4165203), (7, 2975145), (15, 1388401), (21, 991715), (35, 595029), (105, 198343), (241, 86415), (723, 28805), (823, 25305), (1205, 17283), (1687, 12345), (2469, 8435), (3615, 5761), (4115, 5061)]