21406044

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{631}}^1$

素因数の和:906

約数の個数: 48

約数和(自身を含む): 54786816

約数和(自身を除く): 33380772

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 132, 257, 514, 631, 771, 1028, 1262, 1542, 1893, 2524, 2827, 3084, 3786, 5654, 6941, 7572, 8481, 11308, 13882, 16962, 20823, 27764, 33924, 41646, 83292, 162167, 324334, 486501, 648668, 973002, 1783837, 1946004, 3567674, 5351511, 7135348, 10703022, 21406044]

約数ペア:

[(1, 21406044), (2, 10703022), (3, 7135348), (4, 5351511), (6, 3567674), (11, 1946004), (12, 1783837), (22, 973002), (33, 648668), (44, 486501), (66, 324334), (132, 162167), (257, 83292), (514, 41646), (631, 33924), (771, 27764), (1028, 20823), (1262, 16962), (1542, 13882), (1893, 11308), (2524, 8481), (2827, 7572), (3084, 6941), (3786, 5654)]