20820852

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2617}}^1$

素因数の和:2657

約数の個数: 72

約数和(自身を含む): 60035976

約数和(自身を除く): 39215124

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 17, 18, 26, 34, 36, 39, 51, 52, 68, 78, 102, 117, 153, 156, 204, 221, 234, 306, 442, 468, 612, 663, 884, 1326, 1989, 2617, 2652, 3978, 5234, 7851, 7956, 10468, 15702, 23553, 31404, 34021, 44489, 47106, 68042, 88978, 94212, 102063, 133467, 136084, 177956, 204126, 266934, 306189, 400401, 408252, 533868, 578357, 612378, 800802, 1156714, 1224756, 1601604, 1735071, 2313428, 3470142, 5205213, 6940284, 10410426, 20820852]

約数ペア:

[(1, 20820852), (2, 10410426), (3, 6940284), (4, 5205213), (6, 3470142), (9, 2313428), (12, 1735071), (13, 1601604), (17, 1224756), (18, 1156714), (26, 800802), (34, 612378), (36, 578357), (39, 533868), (51, 408252), (52, 400401), (68, 306189), (78, 266934), (102, 204126), (117, 177956), (153, 136084), (156, 133467), (204, 102063), (221, 94212), (234, 88978), (306, 68042), (442, 47106), (468, 44489), (612, 34021), (663, 31404), (884, 23553), (1326, 15702), (1989, 10468), (2617, 7956), (2652, 7851), (3978, 5234)]