21066764

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{137}}^1\times {\mathrm{1039}}^1$

素因数の和:1217

約数の個数: 24

約数和(自身を含む): 38176320

約数和(自身を除く): 17109556

約数列:

[1, 2, 4, 37, 74, 137, 148, 274, 548, 1039, 2078, 4156, 5069, 10138, 20276, 38443, 76886, 142343, 153772, 284686, 569372, 5266691, 10533382, 21066764]

約数ペア:

[(1, 21066764), (2, 10533382), (4, 5266691), (37, 569372), (74, 284686), (137, 153772), (148, 142343), (274, 76886), (548, 38443), (1039, 20276), (2078, 10138), (4156, 5069)]