19945245

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{727}}^1$

素因数の和:825

約数の個数: 32

約数和(自身を含む): 33546240

約数和(自身を除く): 13600995

約数列:

[1, 3, 5, 15, 31, 59, 93, 155, 177, 295, 465, 727, 885, 1829, 2181, 3635, 5487, 9145, 10905, 22537, 27435, 42893, 67611, 112685, 128679, 214465, 338055, 643395, 1329683, 3989049, 6648415, 19945245]

約数ペア:

[(1, 19945245), (3, 6648415), (5, 3989049), (15, 1329683), (31, 643395), (59, 338055), (93, 214465), (155, 128679), (177, 112685), (295, 67611), (465, 42893), (727, 27435), (885, 22537), (1829, 10905), (2181, 9145), (3635, 5487)]