21499010

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{2803}}^1$

素因数の和:2882

約数の個数: 32

約数和(自身を含む): 42396480

約数和(自身を除く): 20897470

約数列:

[1, 2, 5, 10, 13, 26, 59, 65, 118, 130, 295, 590, 767, 1534, 2803, 3835, 5606, 7670, 14015, 28030, 36439, 72878, 165377, 182195, 330754, 364390, 826885, 1653770, 2149901, 4299802, 10749505, 21499010]

約数ペア:

[(1, 21499010), (2, 10749505), (5, 4299802), (10, 2149901), (13, 1653770), (26, 826885), (59, 364390), (65, 330754), (118, 182195), (130, 165377), (295, 72878), (590, 36439), (767, 28030), (1534, 14015), (2803, 7670), (3835, 5606)]