20921860296

素因数分解:

$2^3\times 3^2\times {\mathrm{211}}^1\times {\mathrm{691}}^1\times {\mathrm{1993}}^1$

素因数の和:2907

約数の個数: 96

約数和(自身を含む): 57042916320

約数和(自身を除く): 36121056024

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 211, 422, 633, 691, 844, 1266, 1382, 1688, 1899, 1993, 2073, 2532, 2764, 3798, 3986, 4146, 5064, 5528, 5979, 6219, 7596, 7972, 8292, 11958, 12438, 15192, 15944, 16584, 17937, 23916, 24876, 35874, 47832, 49752, 71748, 143496, 145801, 291602, 420523, 437403, 583204, 841046, 874806, 1166408, 1261569, 1312209, 1377163, 1682092, 1749612, 2523138, 2624418, 2754326, 3364184, 3499224, 3784707, 4131489, 5046276, 5248836, 5508652, 7569414, 8262978, 10092552, 10497672, 11017304, 12394467, 15138828, 16525956, 24788934, 30277656, 33051912, 49577868, 99155736, 290581393, 581162786, 871744179, 1162325572, 1743488358, 2324651144, 2615232537, 3486976716, 5230465074, 6973953432, 10460930148, 20921860296]

約数ペア:

[(1, 20921860296), (2, 10460930148), (3, 6973953432), (4, 5230465074), (6, 3486976716), (8, 2615232537), (9, 2324651144), (12, 1743488358), (18, 1162325572), (24, 871744179), (36, 581162786), (72, 290581393), (211, 99155736), (422, 49577868), (633, 33051912), (691, 30277656), (844, 24788934), (1266, 16525956), (1382, 15138828), (1688, 12394467), (1899, 11017304), (1993, 10497672), (2073, 10092552), (2532, 8262978), (2764, 7569414), (3798, 5508652), (3986, 5248836), (4146, 5046276), (5064, 4131489), (5528, 3784707), (5979, 3499224), (6219, 3364184), (7596, 2754326), (7972, 2624418), (8292, 2523138), (11958, 1749612), (12438, 1682092), (15192, 1377163), (15944, 1312209), (16584, 1261569), (17937, 1166408), (23916, 874806), (24876, 841046), (35874, 583204), (47832, 437403), (49752, 420523), (71748, 291602), (143496, 145801)]