19666276

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{163}}^1$

素因数の和:344

約数の個数: 48

約数和(自身を含む): 41144320

約数和(自身を除く): 21478044

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 139, 163, 217, 278, 326, 434, 556, 652, 868, 973, 1141, 1946, 2282, 3892, 4309, 4564, 5053, 8618, 10106, 17236, 20212, 22657, 30163, 35371, 45314, 60326, 70742, 90628, 120652, 141484, 158599, 317198, 634396, 702367, 1404734, 2809468, 4916569, 9833138, 19666276]

約数ペア:

[(1, 19666276), (2, 9833138), (4, 4916569), (7, 2809468), (14, 1404734), (28, 702367), (31, 634396), (62, 317198), (124, 158599), (139, 141484), (163, 120652), (217, 90628), (278, 70742), (326, 60326), (434, 45314), (556, 35371), (652, 30163), (868, 22657), (973, 20212), (1141, 17236), (1946, 10106), (2282, 8618), (3892, 5053), (4309, 4564)]