221879151

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1\times {\mathrm{257}}^1$

素因数の和:480

約数の個数: 48

約数和(自身を含む): 356114304

約数和(自身を除く): 134235153

約数列:

[1, 3, 9, 13, 39, 47, 117, 141, 157, 257, 423, 471, 611, 771, 1413, 1833, 2041, 2313, 3341, 5499, 6123, 7379, 10023, 12079, 18369, 22137, 30069, 36237, 40349, 66411, 95927, 108711, 121047, 157027, 287781, 363141, 471081, 524537, 863343, 1413243, 1573611, 1896403, 4720833, 5689209, 17067627, 24653239, 73959717, 221879151]

約数ペア:

[(1, 221879151), (3, 73959717), (9, 24653239), (13, 17067627), (39, 5689209), (47, 4720833), (117, 1896403), (141, 1573611), (157, 1413243), (257, 863343), (423, 524537), (471, 471081), (611, 363141), (771, 287781), (1413, 157027), (1833, 121047), (2041, 108711), (2313, 95927), (3341, 66411), (5499, 40349), (6123, 36237), (7379, 30069), (10023, 22137), (12079, 18369)]