20466978

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{3557}}^1$

素因数の和:3706

約数の個数: 32

約数和(自身を含む): 47136384

約数和(自身を除く): 26669406

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 137, 274, 411, 822, 959, 1918, 2877, 3557, 5754, 7114, 10671, 21342, 24899, 49798, 74697, 149394, 487309, 974618, 1461927, 2923854, 3411163, 6822326, 10233489, 20466978]

約数ペア:

[(1, 20466978), (2, 10233489), (3, 6822326), (6, 3411163), (7, 2923854), (14, 1461927), (21, 974618), (42, 487309), (137, 149394), (274, 74697), (411, 49798), (822, 24899), (959, 21342), (1918, 10671), (2877, 7114), (3557, 5754)]