21524217

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{383}}^1$

素因数の和:541

約数の個数: 32

約数和(自身を含む): 34062336

約数和(自身を除く): 12538119

約数列:

[1, 3, 11, 13, 33, 39, 131, 143, 383, 393, 429, 1149, 1441, 1703, 4213, 4323, 4979, 5109, 12639, 14937, 18733, 50173, 54769, 56199, 150519, 164307, 551903, 652249, 1655709, 1956747, 7174739, 21524217]

約数ペア:

[(1, 21524217), (3, 7174739), (11, 1956747), (13, 1655709), (33, 652249), (39, 551903), (131, 164307), (143, 150519), (383, 56199), (393, 54769), (429, 50173), (1149, 18733), (1441, 14937), (1703, 12639), (4213, 5109), (4323, 4979)]