21172476

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{135721}}^1$

素因数の和:135741

約数の個数: 24

約数和(自身を含む): 53203024

約数和(自身を除く): 32030548

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 135721, 271442, 407163, 542884, 814326, 1628652, 1764373, 3528746, 5293119, 7057492, 10586238, 21172476]

約数ペア:

[(1, 21172476), (2, 10586238), (3, 7057492), (4, 5293119), (6, 3528746), (12, 1764373), (13, 1628652), (26, 814326), (39, 542884), (52, 407163), (78, 271442), (156, 135721)]