61991478

素因数分解:

$2^1\times 3^2\times {\mathrm{251}}^1\times {\mathrm{13721}}^1$

素因数の和:13980

約数の個数: 24

約数和(自身を含む): 134859816

約数和(自身を除く): 72868338

約数列:

[1, 2, 3, 6, 9, 18, 251, 502, 753, 1506, 2259, 4518, 13721, 27442, 41163, 82326, 123489, 246978, 3443971, 6887942, 10331913, 20663826, 30995739, 61991478]

約数ペア:

[(1, 61991478), (2, 30995739), (3, 20663826), (6, 10331913), (9, 6887942), (18, 3443971), (251, 246978), (502, 123489), (753, 82326), (1506, 41163), (2259, 27442), (4518, 13721)]