20211249968

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1109}}^1\times {\mathrm{12517}}^1$

素因数の和:13654

約数の個数: 80

約数和(自身を含む): 48243370560

約数和(自身を除く): 28032120592

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1109, 1456, 2218, 4436, 7763, 8872, 12517, 14417, 15526, 17744, 25034, 28834, 31052, 50068, 57668, 62104, 87619, 100136, 100919, 115336, 124208, 162721, 175238, 200272, 201838, 230672, 325442, 350476, 403676, 650884, 700952, 807352, 1139047, 1301768, 1401904, 1614704, 2278094, 2603536, 4556188, 9112376, 13881353, 18224752, 27762706, 55525412, 97169471, 111050824, 180457589, 194338942, 222101648, 360915178, 388677884, 721830356, 777355768, 1263203123, 1443660712, 1554711536, 2526406246, 2887321424, 5052812492, 10105624984, 20211249968]

約数ペア:

[(1, 20211249968), (2, 10105624984), (4, 5052812492), (7, 2887321424), (8, 2526406246), (13, 1554711536), (14, 1443660712), (16, 1263203123), (26, 777355768), (28, 721830356), (52, 388677884), (56, 360915178), (91, 222101648), (104, 194338942), (112, 180457589), (182, 111050824), (208, 97169471), (364, 55525412), (728, 27762706), (1109, 18224752), (1456, 13881353), (2218, 9112376), (4436, 4556188), (7763, 2603536), (8872, 2278094), (12517, 1614704), (14417, 1401904), (15526, 1301768), (17744, 1139047), (25034, 807352), (28834, 700952), (31052, 650884), (50068, 403676), (57668, 350476), (62104, 325442), (87619, 230672), (100136, 201838), (100919, 200272), (115336, 175238), (124208, 162721)]