28158405

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{3631}}^1$

素因数の和:3697

約数の個数: 32

約数和(自身を含む): 50208768

約数和(自身を除く): 22050363

約数列:

[1, 3, 5, 11, 15, 33, 47, 55, 141, 165, 235, 517, 705, 1551, 2585, 3631, 7755, 10893, 18155, 39941, 54465, 119823, 170657, 199705, 511971, 599115, 853285, 1877227, 2559855, 5631681, 9386135, 28158405]

約数ペア:

[(1, 28158405), (3, 9386135), (5, 5631681), (11, 2559855), (15, 1877227), (33, 853285), (47, 599115), (55, 511971), (141, 199705), (165, 170657), (235, 119823), (517, 54465), (705, 39941), (1551, 18155), (2585, 10893), (3631, 7755)]