21900508385

素因数分解:

$5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{263}}^1\times {\mathrm{23099}}^1$

素因数の和:23477

約数の個数: 32

約数和(自身を含む): 30443212800

約数和(自身を除く): 8542704415

約数列:

[1, 5, 7, 35, 103, 263, 515, 721, 1315, 1841, 3605, 9205, 23099, 27089, 115495, 135445, 161693, 189623, 808465, 948115, 2379197, 6075037, 11895985, 16654379, 30375185, 42525259, 83271895, 212626295, 625728811, 3128644055, 4380101677, 21900508385]

約数ペア:

[(1, 21900508385), (5, 4380101677), (7, 3128644055), (35, 625728811), (103, 212626295), (263, 83271895), (515, 42525259), (721, 30375185), (1315, 16654379), (1841, 11895985), (3605, 6075037), (9205, 2379197), (23099, 948115), (27089, 808465), (115495, 189623), (135445, 161693)]