18240405

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{233}}^1\times {\mathrm{307}}^1$

素因数の和:565

約数の個数: 32

約数和(自身を含む): 31135104

約数和(自身を除く): 12894699

約数列:

[1, 3, 5, 15, 17, 51, 85, 233, 255, 307, 699, 921, 1165, 1535, 3495, 3961, 4605, 5219, 11883, 15657, 19805, 26095, 59415, 71531, 78285, 214593, 357655, 1072965, 1216027, 3648081, 6080135, 18240405]

約数ペア:

[(1, 18240405), (3, 6080135), (5, 3648081), (15, 1216027), (17, 1072965), (51, 357655), (85, 214593), (233, 78285), (255, 71531), (307, 59415), (699, 26095), (921, 19805), (1165, 15657), (1535, 11883), (3495, 5219), (3961, 4605)]