21110518

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{331}}^1$

素因数の和:580

約数の個数: 32

約数和(自身を含む): 37481472

約数和(自身を除く): 16370954

約数列:

[1, 2, 11, 13, 22, 26, 143, 223, 286, 331, 446, 662, 2453, 2899, 3641, 4303, 4906, 5798, 7282, 8606, 31889, 47333, 63778, 73813, 94666, 147626, 811943, 959569, 1623886, 1919138, 10555259, 21110518]

約数ペア:

[(1, 21110518), (2, 10555259), (11, 1919138), (13, 1623886), (22, 959569), (26, 811943), (143, 147626), (223, 94666), (286, 73813), (331, 63778), (446, 47333), (662, 31889), (2453, 8606), (2899, 7282), (3641, 5798), (4303, 4906)]