21446360

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41243}}^1$

素因数の和:41267

約数の個数: 32

約数和(自身を含む): 51967440

約数和(自身を除く): 30521080

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 41243, 82486, 164972, 206215, 329944, 412430, 536159, 824860, 1072318, 1649720, 2144636, 2680795, 4289272, 5361590, 10723180, 21446360]

約数ペア:

[(1, 21446360), (2, 10723180), (4, 5361590), (5, 4289272), (8, 2680795), (10, 2144636), (13, 1649720), (20, 1072318), (26, 824860), (40, 536159), (52, 412430), (65, 329944), (104, 206215), (130, 164972), (260, 82486), (520, 41243)]