221568318

素因数分解:

$2^1\times 3^3\times {\mathrm{313}}^1\times {\mathrm{13109}}^1$

素因数の和:13433

約数の個数: 32

約数和(自身を含む): 493984800

約数和(自身を除く): 272416482

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 313, 626, 939, 1878, 2817, 5634, 8451, 13109, 16902, 26218, 39327, 78654, 117981, 235962, 353943, 707886, 4103117, 8206234, 12309351, 24618702, 36928053, 73856106, 110784159, 221568318]

約数ペア:

[(1, 221568318), (2, 110784159), (3, 73856106), (6, 36928053), (9, 24618702), (18, 12309351), (27, 8206234), (54, 4103117), (313, 707886), (626, 353943), (939, 235962), (1878, 117981), (2817, 78654), (5634, 39327), (8451, 26218), (13109, 16902)]