21677220

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{13381}}^1$

素因数の和:13402

約数の個数: 60

約数和(自身を含む): 68007324

約数和(自身を除く): 46330104

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 13381, 26762, 40143, 53524, 66905, 80286, 120429, 133810, 160572, 200715, 240858, 267620, 361287, 401430, 481716, 602145, 722574, 802860, 1083861, 1204290, 1445148, 1806435, 2167722, 2408580, 3612870, 4335444, 5419305, 7225740, 10838610, 21677220]

約数ペア:

[(1, 21677220), (2, 10838610), (3, 7225740), (4, 5419305), (5, 4335444), (6, 3612870), (9, 2408580), (10, 2167722), (12, 1806435), (15, 1445148), (18, 1204290), (20, 1083861), (27, 802860), (30, 722574), (36, 602145), (45, 481716), (54, 401430), (60, 361287), (81, 267620), (90, 240858), (108, 200715), (135, 160572), (162, 133810), (180, 120429), (270, 80286), (324, 66905), (405, 53524), (540, 40143), (810, 26762), (1620, 13381)]