20117643

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{1249}}^1$

素因数の和:1331

約数の個数: 32

約数和(自身を含む): 33600000

約数和(自身を除く): 13482357

約数列:

[1, 3, 7, 13, 21, 39, 59, 91, 177, 273, 413, 767, 1239, 1249, 2301, 3747, 5369, 8743, 16107, 16237, 26229, 48711, 73691, 113659, 221073, 340977, 515837, 957983, 1547511, 2873949, 6705881, 20117643]

約数ペア:

[(1, 20117643), (3, 6705881), (7, 2873949), (13, 1547511), (21, 957983), (39, 515837), (59, 340977), (91, 221073), (177, 113659), (273, 73691), (413, 48711), (767, 26229), (1239, 16237), (1249, 16107), (2301, 8743), (3747, 5369)]