21262440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{167}}^1\times {\mathrm{1061}}^1$

素因数の和:1242

約数の個数: 64

約数和(自身を含む): 64229760

約数和(自身を除く): 42967320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 167, 334, 501, 668, 835, 1002, 1061, 1336, 1670, 2004, 2122, 2505, 3183, 3340, 4008, 4244, 5010, 5305, 6366, 6680, 8488, 10020, 10610, 12732, 15915, 20040, 21220, 25464, 31830, 42440, 63660, 127320, 177187, 354374, 531561, 708748, 885935, 1063122, 1417496, 1771870, 2126244, 2657805, 3543740, 4252488, 5315610, 7087480, 10631220, 21262440]

約数ペア:

[(1, 21262440), (2, 10631220), (3, 7087480), (4, 5315610), (5, 4252488), (6, 3543740), (8, 2657805), (10, 2126244), (12, 1771870), (15, 1417496), (20, 1063122), (24, 885935), (30, 708748), (40, 531561), (60, 354374), (120, 177187), (167, 127320), (334, 63660), (501, 42440), (668, 31830), (835, 25464), (1002, 21220), (1061, 20040), (1336, 15915), (1670, 12732), (2004, 10610), (2122, 10020), (2505, 8488), (3183, 6680), (3340, 6366), (4008, 5305), (4244, 5010)]