18999475

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{1171}}^1$

素因数の和:1251

約数の個数: 24

約数和(自身を含む): 26159040

約数和(自身を除く): 7159565

約数列:

[1, 5, 11, 25, 55, 59, 275, 295, 649, 1171, 1475, 3245, 5855, 12881, 16225, 29275, 64405, 69089, 322025, 345445, 759979, 1727225, 3799895, 18999475]

約数ペア:

[(1, 18999475), (5, 3799895), (11, 1727225), (25, 759979), (55, 345445), (59, 322025), (275, 69089), (295, 64405), (649, 29275), (1171, 16225), (1475, 12881), (3245, 5855)]