21388308

素因数分解:

$2^2\times 3^1\times {\mathrm{61}}^2\times {\mathrm{479}}^1$

素因数の和:608

約数の個数: 36

約数和(自身を含む): 50843520

約数和(自身を除く): 29455212

約数列:

[1, 2, 3, 4, 6, 12, 61, 122, 183, 244, 366, 479, 732, 958, 1437, 1916, 2874, 3721, 5748, 7442, 11163, 14884, 22326, 29219, 44652, 58438, 87657, 116876, 175314, 350628, 1782359, 3564718, 5347077, 7129436, 10694154, 21388308]

約数ペア:

[(1, 21388308), (2, 10694154), (3, 7129436), (4, 5347077), (6, 3564718), (12, 1782359), (61, 350628), (122, 175314), (183, 116876), (244, 87657), (366, 58438), (479, 44652), (732, 29219), (958, 22326), (1437, 14884), (1916, 11163), (2874, 7442), (3721, 5748)]