221000.0000000

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{263}}^1$

素因数の和:374

約数の個数: 32

約数和(自身を含む): 14065920

約数和(自身を除く): 6271126

約数列:

[1, 2, 7, 14, 29, 58, 73, 146, 203, 263, 406, 511, 526, 1022, 1841, 2117, 3682, 4234, 7627, 14819, 15254, 19199, 29638, 38398, 53389, 106778, 134393, 268786, 556771, 1113542, 3897397, 7794794]

約数ペア:

[(1, 7794794), (2, 3897397), (7, 1113542), (14, 556771), (29, 268786), (58, 134393), (73, 106778), (146, 53389), (203, 38398), (263, 29638), (406, 19199), (511, 15254), (526, 14819), (1022, 7627), (1841, 4234), (2117, 3682)]