21258216

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{42179}}^1$

素因数の和:42198

約数の個数: 48

約数和(自身を含む): 65800800

約数和(自身を除く): 44542584

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 56, 63, 72, 84, 126, 168, 252, 504, 42179, 84358, 126537, 168716, 253074, 295253, 337432, 379611, 506148, 590506, 759222, 885759, 1012296, 1181012, 1518444, 1771518, 2362024, 2657277, 3036888, 3543036, 5314554, 7086072, 10629108, 21258216]

約数ペア:

[(1, 21258216), (2, 10629108), (3, 7086072), (4, 5314554), (6, 3543036), (7, 3036888), (8, 2657277), (9, 2362024), (12, 1771518), (14, 1518444), (18, 1181012), (21, 1012296), (24, 885759), (28, 759222), (36, 590506), (42, 506148), (56, 379611), (63, 337432), (72, 295253), (84, 253074), (126, 168716), (168, 126537), (252, 84358), (504, 42179)]