13579821

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{227}}^1$

素因数の和:290

約数の個数: 36

約数和(自身を含む): 21838752

約数和(自身を除く): 8258931

約数列:

[1, 3, 9, 17, 23, 51, 69, 153, 207, 227, 289, 391, 681, 867, 1173, 2043, 2601, 3519, 3859, 5221, 6647, 11577, 15663, 19941, 34731, 46989, 59823, 65603, 88757, 196809, 266271, 590427, 798813, 1508869, 4526607, 13579821]

約数ペア:

[(1, 13579821), (3, 4526607), (9, 1508869), (17, 798813), (23, 590427), (51, 266271), (69, 196809), (153, 88757), (207, 65603), (227, 59823), (289, 46989), (391, 34731), (681, 19941), (867, 15663), (1173, 11577), (2043, 6647), (2601, 5221), (3519, 3859)]