221001473

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{773}}^1$

素因数の和:917

約数の個数: 32

約数和(自身を含む): 285327360

約数和(自身を除く): 64325887

約数列:

[1, 7, 11, 47, 77, 79, 329, 517, 553, 773, 869, 3619, 3713, 5411, 6083, 8503, 25991, 36331, 40843, 59521, 61067, 254317, 285901, 399641, 427469, 671737, 2797487, 2870149, 4702159, 20091043, 31571639, 221001473]

約数ペア:

[(1, 221001473), (7, 31571639), (11, 20091043), (47, 4702159), (77, 2870149), (79, 2797487), (329, 671737), (517, 427469), (553, 399641), (773, 285901), (869, 254317), (3619, 61067), (3713, 59521), (5411, 40843), (6083, 36331), (8503, 25991)]