19212405

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{523}}^1$

素因数の和:641

約数の個数: 32

約数和(自身を含む): 32194560

約数和(自身を除く): 12982155

約数列:

[1, 3, 5, 15, 31, 79, 93, 155, 237, 395, 465, 523, 1185, 1569, 2449, 2615, 7347, 7845, 12245, 16213, 36735, 41317, 48639, 81065, 123951, 206585, 243195, 619755, 1280827, 3842481, 6404135, 19212405]

約数ペア:

[(1, 19212405), (3, 6404135), (5, 3842481), (15, 1280827), (31, 619755), (79, 243195), (93, 206585), (155, 123951), (237, 81065), (395, 48639), (465, 41317), (523, 36735), (1185, 16213), (1569, 12245), (2449, 7845), (2615, 7347)]