21272436

素因数分解:

$2^2\times 3^3\times {\mathrm{431}}^1\times {\mathrm{457}}^1$

素因数の和:901

約数の個数: 48

約数和(自身を含む): 55399680

約数和(自身を除く): 34127244

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 431, 457, 862, 914, 1293, 1371, 1724, 1828, 2586, 2742, 3879, 4113, 5172, 5484, 7758, 8226, 11637, 12339, 15516, 16452, 23274, 24678, 46548, 49356, 196967, 393934, 590901, 787868, 1181802, 1772703, 2363604, 3545406, 5318109, 7090812, 10636218, 21272436]

約数ペア:

[(1, 21272436), (2, 10636218), (3, 7090812), (4, 5318109), (6, 3545406), (9, 2363604), (12, 1772703), (18, 1181802), (27, 787868), (36, 590901), (54, 393934), (108, 196967), (431, 49356), (457, 46548), (862, 24678), (914, 23274), (1293, 16452), (1371, 15516), (1724, 12339), (1828, 11637), (2586, 8226), (2742, 7758), (3879, 5484), (4113, 5172)]