21272862

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{1223}}^1$

素因数の和:1464

約数の個数: 32

約数和(自身を含む): 46061568

約数和(自身を除く): 24788706

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 223, 446, 669, 1223, 1338, 2446, 2899, 3669, 5798, 7338, 8697, 15899, 17394, 31798, 47697, 95394, 272729, 545458, 818187, 1636374, 3545477, 7090954, 10636431, 21272862]

約数ペア:

[(1, 21272862), (2, 10636431), (3, 7090954), (6, 3545477), (13, 1636374), (26, 818187), (39, 545458), (78, 272729), (223, 95394), (446, 47697), (669, 31798), (1223, 17394), (1338, 15899), (2446, 8697), (2899, 7338), (3669, 5798)]