213881409

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{167}}^1\times {\mathrm{701}}^1$

素因数の和:910

約数の個数: 48

約数和(自身を含む): 367960320

約数和(自身を除く): 154078911

約数列:

[1, 3, 7, 9, 21, 29, 63, 87, 167, 203, 261, 501, 609, 701, 1169, 1503, 1827, 2103, 3507, 4843, 4907, 6309, 10521, 14529, 14721, 20329, 33901, 43587, 44163, 60987, 101703, 117067, 142303, 182961, 305109, 351201, 426909, 819469, 1053603, 1280727, 2458407, 3394943, 7375221, 10184829, 23764601, 30554487, 71293803, 213881409]

約数ペア:

[(1, 213881409), (3, 71293803), (7, 30554487), (9, 23764601), (21, 10184829), (29, 7375221), (63, 3394943), (87, 2458407), (167, 1280727), (203, 1053603), (261, 819469), (501, 426909), (609, 351201), (701, 305109), (1169, 182961), (1503, 142303), (1827, 117067), (2103, 101703), (3507, 60987), (4843, 44163), (4907, 43587), (6309, 33901), (10521, 20329), (14529, 14721)]