21895290

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{8389}}^1$

素因数の和:8431

約数の個数: 48

約数和(自身を含む): 58897800

約数和(自身を除く): 37002510

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 29, 30, 45, 58, 87, 90, 145, 174, 261, 290, 435, 522, 870, 1305, 2610, 8389, 16778, 25167, 41945, 50334, 75501, 83890, 125835, 151002, 243281, 251670, 377505, 486562, 729843, 755010, 1216405, 1459686, 2189529, 2432810, 3649215, 4379058, 7298430, 10947645, 21895290]

約数ペア:

[(1, 21895290), (2, 10947645), (3, 7298430), (5, 4379058), (6, 3649215), (9, 2432810), (10, 2189529), (15, 1459686), (18, 1216405), (29, 755010), (30, 729843), (45, 486562), (58, 377505), (87, 251670), (90, 243281), (145, 151002), (174, 125835), (261, 83890), (290, 75501), (435, 50334), (522, 41945), (870, 25167), (1305, 16778), (2610, 8389)]