4971981

素因数分解:

$3^1\times 7^2\times {\mathrm{149}}^1\times {\mathrm{227}}^1$

素因数の和:393

約数の個数: 24

約数和(自身を含む): 7797600

約数和(自身を除く): 2825619

約数列:

[1, 3, 7, 21, 49, 147, 149, 227, 447, 681, 1043, 1589, 3129, 4767, 7301, 11123, 21903, 33369, 33823, 101469, 236761, 710283, 1657327, 4971981]

約数ペア:

[(1, 4971981), (3, 1657327), (7, 710283), (21, 236761), (49, 101469), (147, 33823), (149, 33369), (227, 21903), (447, 11123), (681, 7301), (1043, 4767), (1589, 3129)]