20920614

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{659}}^1$

素因数の和:725

約数の個数: 64

約数和(自身を含む): 50561280

約数和(自身を除く): 29640666

約数列:

[1, 2, 3, 6, 11, 13, 22, 26, 33, 37, 39, 66, 74, 78, 111, 143, 222, 286, 407, 429, 481, 659, 814, 858, 962, 1221, 1318, 1443, 1977, 2442, 2886, 3954, 5291, 7249, 8567, 10582, 14498, 15873, 17134, 21747, 24383, 25701, 31746, 43494, 48766, 51402, 73149, 94237, 146298, 188474, 268213, 282711, 316979, 536426, 565422, 633958, 804639, 950937, 1609278, 1901874, 3486769, 6973538, 10460307, 20920614]

約数ペア:

[(1, 20920614), (2, 10460307), (3, 6973538), (6, 3486769), (11, 1901874), (13, 1609278), (22, 950937), (26, 804639), (33, 633958), (37, 565422), (39, 536426), (66, 316979), (74, 282711), (78, 268213), (111, 188474), (143, 146298), (222, 94237), (286, 73149), (407, 51402), (429, 48766), (481, 43494), (659, 31746), (814, 25701), (858, 24383), (962, 21747), (1221, 17134), (1318, 15873), (1443, 14498), (1977, 10582), (2442, 8567), (2886, 7249), (3954, 5291)]