217879921

素因数分解:

$7^2\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{1063}}^1$

素因数の和:1213

約数の個数: 24

約数和(自身を含む): 261999360

約数和(自身を除く): 44119439

約数列:

[1, 7, 47, 49, 89, 329, 623, 1063, 2303, 4183, 4361, 7441, 29281, 49961, 52087, 94607, 204967, 349727, 662249, 2448089, 4446529, 4635743, 31125703, 217879921]

約数ペア:

[(1, 217879921), (7, 31125703), (47, 4635743), (49, 4446529), (89, 2448089), (329, 662249), (623, 349727), (1063, 204967), (2303, 94607), (4183, 52087), (4361, 49961), (7441, 29281)]