18923775

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{1493}}^1$

素因数の和:1532

約数の個数: 36

約数和(自身を含む): 33901848

約数和(自身を除く): 14978073

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 169, 195, 325, 507, 845, 975, 1493, 2535, 4225, 4479, 7465, 12675, 19409, 22395, 37325, 58227, 97045, 111975, 252317, 291135, 485225, 756951, 1261585, 1455675, 3784755, 6307925, 18923775]

約数ペア:

[(1, 18923775), (3, 6307925), (5, 3784755), (13, 1455675), (15, 1261585), (25, 756951), (39, 485225), (65, 291135), (75, 252317), (169, 111975), (195, 97045), (325, 58227), (507, 37325), (845, 22395), (975, 19409), (1493, 12675), (2535, 7465), (4225, 4479)]