21517254

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{997}}^1$

素因数の和:1125

約数の個数: 48

約数和(自身を含む): 51377040

約数和(自身を除く): 29859786

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 109, 198, 218, 327, 654, 981, 997, 1199, 1962, 1994, 2398, 2991, 3597, 5982, 7194, 8973, 10791, 10967, 17946, 21582, 21934, 32901, 65802, 98703, 108673, 197406, 217346, 326019, 652038, 978057, 1195403, 1956114, 2390806, 3586209, 7172418, 10758627, 21517254]

約数ペア:

[(1, 21517254), (2, 10758627), (3, 7172418), (6, 3586209), (9, 2390806), (11, 1956114), (18, 1195403), (22, 978057), (33, 652038), (66, 326019), (99, 217346), (109, 197406), (198, 108673), (218, 98703), (327, 65802), (654, 32901), (981, 21934), (997, 21582), (1199, 17946), (1962, 10967), (1994, 10791), (2398, 8973), (2991, 7194), (3597, 5982)]