20557836

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{109}}^1$

素因数の和:176

約数の個数: 108

約数和(自身を含む): 58618560

約数和(自身を除く): 38060724

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 31, 36, 39, 52, 62, 78, 93, 109, 117, 124, 156, 169, 186, 218, 234, 279, 327, 338, 372, 403, 436, 468, 507, 558, 654, 676, 806, 981, 1014, 1116, 1209, 1308, 1417, 1521, 1612, 1962, 2028, 2418, 2834, 3042, 3379, 3627, 3924, 4251, 4836, 5239, 5668, 6084, 6758, 7254, 8502, 10137, 10478, 12753, 13516, 14508, 15717, 17004, 18421, 20274, 20956, 25506, 30411, 31434, 36842, 40548, 43927, 47151, 51012, 55263, 60822, 62868, 73684, 87854, 94302, 110526, 121644, 131781, 165789, 175708, 188604, 221052, 263562, 331578, 395343, 527124, 571051, 663156, 790686, 1142102, 1581372, 1713153, 2284204, 3426306, 5139459, 6852612, 10278918, 20557836]

約数ペア:

[(1, 20557836), (2, 10278918), (3, 6852612), (4, 5139459), (6, 3426306), (9, 2284204), (12, 1713153), (13, 1581372), (18, 1142102), (26, 790686), (31, 663156), (36, 571051), (39, 527124), (52, 395343), (62, 331578), (78, 263562), (93, 221052), (109, 188604), (117, 175708), (124, 165789), (156, 131781), (169, 121644), (186, 110526), (218, 94302), (234, 87854), (279, 73684), (327, 62868), (338, 60822), (372, 55263), (403, 51012), (436, 47151), (468, 43927), (507, 40548), (558, 36842), (654, 31434), (676, 30411), (806, 25506), (981, 20956), (1014, 20274), (1116, 18421), (1209, 17004), (1308, 15717), (1417, 14508), (1521, 13516), (1612, 12753), (1962, 10478), (2028, 10137), (2418, 8502), (2834, 7254), (3042, 6758), (3379, 6084), (3627, 5668), (3924, 5239), (4251, 4836)]