21933275

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{311}}^1$

素因数の和:372

約数の個数: 48

約数和(自身を含む): 34664448

約数和(自身を除く): 12731173

約数列:

[1, 5, 7, 13, 25, 31, 35, 65, 91, 155, 175, 217, 311, 325, 403, 455, 775, 1085, 1555, 2015, 2177, 2275, 2821, 4043, 5425, 7775, 9641, 10075, 10885, 14105, 20215, 28301, 48205, 54425, 67487, 70525, 101075, 125333, 141505, 241025, 337435, 626665, 707525, 877331, 1687175, 3133325, 4386655, 21933275]

約数ペア:

[(1, 21933275), (5, 4386655), (7, 3133325), (13, 1687175), (25, 877331), (31, 707525), (35, 626665), (65, 337435), (91, 241025), (155, 141505), (175, 125333), (217, 101075), (311, 70525), (325, 67487), (403, 54425), (455, 48205), (775, 28301), (1085, 20215), (1555, 14105), (2015, 10885), (2177, 10075), (2275, 9641), (2821, 7775), (4043, 5425)]