21720204

素因数分解:

$2^2\times 3^3\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{389}}^1$

素因数の和:460

約数の個数: 96

約数和(自身を含む): 62899200

約数和(自身を除く): 41178996

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 27, 33, 36, 44, 47, 54, 66, 94, 99, 108, 132, 141, 188, 198, 282, 297, 389, 396, 423, 517, 564, 594, 778, 846, 1034, 1167, 1188, 1269, 1551, 1556, 1692, 2068, 2334, 2538, 3102, 3501, 4279, 4653, 4668, 5076, 6204, 7002, 8558, 9306, 10503, 12837, 13959, 14004, 17116, 18283, 18612, 21006, 25674, 27918, 36566, 38511, 42012, 51348, 54849, 55836, 73132, 77022, 109698, 115533, 154044, 164547, 201113, 219396, 231066, 329094, 402226, 462132, 493641, 603339, 658188, 804452, 987282, 1206678, 1810017, 1974564, 2413356, 3620034, 5430051, 7240068, 10860102, 21720204]

約数ペア:

[(1, 21720204), (2, 10860102), (3, 7240068), (4, 5430051), (6, 3620034), (9, 2413356), (11, 1974564), (12, 1810017), (18, 1206678), (22, 987282), (27, 804452), (33, 658188), (36, 603339), (44, 493641), (47, 462132), (54, 402226), (66, 329094), (94, 231066), (99, 219396), (108, 201113), (132, 164547), (141, 154044), (188, 115533), (198, 109698), (282, 77022), (297, 73132), (389, 55836), (396, 54849), (423, 51348), (517, 42012), (564, 38511), (594, 36566), (778, 27918), (846, 25674), (1034, 21006), (1167, 18612), (1188, 18283), (1269, 17116), (1551, 14004), (1556, 13959), (1692, 12837), (2068, 10503), (2334, 9306), (2538, 8558), (3102, 7002), (3501, 6204), (4279, 5076), (4653, 4668)]