21317877

素因数分解:

$3^3\times 7^1\times {\mathrm{149}}^1\times {\mathrm{757}}^1$

素因数の和:922

約数の個数: 32

約数和(自身を含む): 36384000

約数和(自身を除く): 15066123

約数列:

[1, 3, 7, 9, 21, 27, 63, 149, 189, 447, 757, 1043, 1341, 2271, 3129, 4023, 5299, 6813, 9387, 15897, 20439, 28161, 47691, 112793, 143073, 338379, 789551, 1015137, 2368653, 3045411, 7105959, 21317877]

約数ペア:

[(1, 21317877), (3, 7105959), (7, 3045411), (9, 2368653), (21, 1015137), (27, 789551), (63, 338379), (149, 143073), (189, 112793), (447, 47691), (757, 28161), (1043, 20439), (1341, 15897), (2271, 9387), (3129, 6813), (4023, 5299)]