21721596

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{139241}}^1$

素因数の和:139261

約数の個数: 24

約数和(自身を含む): 54582864

約数和(自身を除く): 32861268

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 139241, 278482, 417723, 556964, 835446, 1670892, 1810133, 3620266, 5430399, 7240532, 10860798, 21721596]

約数ペア:

[(1, 21721596), (2, 10860798), (3, 7240532), (4, 5430399), (6, 3620266), (12, 1810133), (13, 1670892), (26, 835446), (39, 556964), (52, 417723), (78, 278482), (156, 139241)]