20396918

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{223}}^1$

素因数の和:356

約数の個数: 32

約数和(自身を含む): 33868800

約数和(自身を除く): 13471882

約数列:

[1, 2, 19, 29, 38, 58, 83, 166, 223, 446, 551, 1102, 1577, 2407, 3154, 4237, 4814, 6467, 8474, 12934, 18509, 37018, 45733, 91466, 122873, 245746, 351671, 536761, 703342, 1073522, 10198459, 20396918]

約数ペア:

[(1, 20396918), (2, 10198459), (19, 1073522), (29, 703342), (38, 536761), (58, 351671), (83, 245746), (166, 122873), (223, 91466), (446, 45733), (551, 37018), (1102, 18509), (1577, 12934), (2407, 8474), (3154, 6467), (4237, 4814)]