20687748

素因数分解:

$2^2\times 3^1\times {\mathrm{809}}^1\times {\mathrm{2131}}^1$

素因数の和:2947

約数の個数: 24

約数和(自身を含む): 48353760

約数和(自身を除く): 27666012

約数列:

[1, 2, 3, 4, 6, 12, 809, 1618, 2131, 2427, 3236, 4262, 4854, 6393, 8524, 9708, 12786, 25572, 1723979, 3447958, 5171937, 6895916, 10343874, 20687748]

約数ペア:

[(1, 20687748), (2, 10343874), (3, 6895916), (4, 5171937), (6, 3447958), (12, 1723979), (809, 25572), (1618, 12786), (2131, 9708), (2427, 8524), (3236, 6393), (4262, 4854)]