19827045

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{20981}}^1$

素因数の和:21002

約数の個数: 32

約数和(自身を含む): 40285440

約数和(自身を除く): 20458395

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945, 20981, 62943, 104905, 146867, 188829, 314715, 440601, 566487, 734335, 944145, 1321803, 2203005, 2832435, 3965409, 6609015, 19827045]

約数ペア:

[(1, 19827045), (3, 6609015), (5, 3965409), (7, 2832435), (9, 2203005), (15, 1321803), (21, 944145), (27, 734335), (35, 566487), (45, 440601), (63, 314715), (105, 188829), (135, 146867), (189, 104905), (315, 62943), (945, 20981)]