21140826

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{1021}}^1$

素因数の和:1079

約数の個数: 64

約数和(自身を含む): 52980480

約数和(自身を除く): 31839654

約数列:

[1, 2, 3, 6, 7, 14, 17, 21, 29, 34, 42, 51, 58, 87, 102, 119, 174, 203, 238, 357, 406, 493, 609, 714, 986, 1021, 1218, 1479, 2042, 2958, 3063, 3451, 6126, 6902, 7147, 10353, 14294, 17357, 20706, 21441, 29609, 34714, 42882, 52071, 59218, 88827, 104142, 121499, 177654, 207263, 242998, 364497, 414526, 503353, 621789, 728994, 1006706, 1243578, 1510059, 3020118, 3523471, 7046942, 10570413, 21140826]

約数ペア:

[(1, 21140826), (2, 10570413), (3, 7046942), (6, 3523471), (7, 3020118), (14, 1510059), (17, 1243578), (21, 1006706), (29, 728994), (34, 621789), (42, 503353), (51, 414526), (58, 364497), (87, 242998), (102, 207263), (119, 177654), (174, 121499), (203, 104142), (238, 88827), (357, 59218), (406, 52071), (493, 42882), (609, 34714), (714, 29609), (986, 21441), (1021, 20706), (1218, 17357), (1479, 14294), (2042, 10353), (2958, 7147), (3063, 6902), (3451, 6126)]