61517781

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{197}}^1$

素因数の和:390

約数の個数: 48

約数和(自身を含む): 102486384

約数和(自身を除く): 40968603

約数列:

[1, 3, 9, 13, 17, 39, 51, 117, 153, 157, 197, 221, 471, 591, 663, 1413, 1773, 1989, 2041, 2561, 2669, 3349, 6123, 7683, 8007, 10047, 18369, 23049, 24021, 30141, 30929, 34697, 43537, 92787, 104091, 130611, 278361, 312273, 391833, 402077, 525793, 1206231, 1577379, 3618693, 4732137, 6835309, 20505927, 61517781]

約数ペア:

[(1, 61517781), (3, 20505927), (9, 6835309), (13, 4732137), (17, 3618693), (39, 1577379), (51, 1206231), (117, 525793), (153, 402077), (157, 391833), (197, 312273), (221, 278361), (471, 130611), (591, 104091), (663, 92787), (1413, 43537), (1773, 34697), (1989, 30929), (2041, 30141), (2561, 24021), (2669, 23049), (3349, 18369), (6123, 10047), (7683, 8007)]