21351772

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{14159}}^1$

素因数の和:14205

約数の個数: 24

約数和(自身を含む): 41630400

約数和(自身を除く): 20278628

約数列:

[1, 2, 4, 13, 26, 29, 52, 58, 116, 377, 754, 1508, 14159, 28318, 56636, 184067, 368134, 410611, 736268, 821222, 1642444, 5337943, 10675886, 21351772]

約数ペア:

[(1, 21351772), (2, 10675886), (4, 5337943), (13, 1642444), (26, 821222), (29, 736268), (52, 410611), (58, 368134), (116, 184067), (377, 56636), (754, 28318), (1508, 14159)]