21444830

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{479}}^1$

素因数の和:545

約数の個数: 48

約数和(自身を含む): 43666560

約数和(自身を除く): 22221730

約数列:

[1, 2, 5, 10, 11, 22, 37, 55, 74, 110, 121, 185, 242, 370, 407, 479, 605, 814, 958, 1210, 2035, 2395, 4070, 4477, 4790, 5269, 8954, 10538, 17723, 22385, 26345, 35446, 44770, 52690, 57959, 88615, 115918, 177230, 194953, 289795, 389906, 579590, 974765, 1949530, 2144483, 4288966, 10722415, 21444830]

約数ペア:

[(1, 21444830), (2, 10722415), (5, 4288966), (10, 2144483), (11, 1949530), (22, 974765), (37, 579590), (55, 389906), (74, 289795), (110, 194953), (121, 177230), (185, 115918), (242, 88615), (370, 57959), (407, 52690), (479, 44770), (605, 35446), (814, 26345), (958, 22385), (1210, 17723), (2035, 10538), (2395, 8954), (4070, 5269), (4477, 4790)]