28219412

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{661}}^1\times {\mathrm{821}}^1$

素因数の和:1499

約数の個数: 24

約数和(自身を含む): 53328072

約数和(自身を除く): 25108660

約数列:

[1, 2, 4, 13, 26, 52, 661, 821, 1322, 1642, 2644, 3284, 8593, 10673, 17186, 21346, 34372, 42692, 542681, 1085362, 2170724, 7054853, 14109706, 28219412]

約数ペア:

[(1, 28219412), (2, 14109706), (4, 7054853), (13, 2170724), (26, 1085362), (52, 542681), (661, 42692), (821, 34372), (1322, 21346), (1642, 17186), (2644, 10673), (3284, 8593)]