21561592

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{1373}}^1$

素因数の和:1543

約数の個数: 32

約数和(自身を含む): 43858080

約数和(自身を除く): 22296488

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 151, 302, 604, 1208, 1373, 1963, 2746, 3926, 5492, 7852, 10984, 15704, 17849, 35698, 71396, 142792, 207323, 414646, 829292, 1658584, 2695199, 5390398, 10780796, 21561592]

約数ペア:

[(1, 21561592), (2, 10780796), (4, 5390398), (8, 2695199), (13, 1658584), (26, 829292), (52, 414646), (104, 207323), (151, 142792), (302, 71396), (604, 35698), (1208, 17849), (1373, 15704), (1963, 10984), (2746, 7852), (3926, 5492)]