2179905

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1597}}^1$

素因数の和:1625

約数の個数: 32

約数和(自身を含む): 4295424

約数和(自身を除く): 2115519

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 105, 195, 273, 455, 1365, 1597, 4791, 7985, 11179, 20761, 23955, 33537, 55895, 62283, 103805, 145327, 167685, 311415, 435981, 726635, 2179905]

約数ペア:

[(1, 2179905), (3, 726635), (5, 435981), (7, 311415), (13, 167685), (15, 145327), (21, 103805), (35, 62283), (39, 55895), (65, 33537), (91, 23955), (105, 20761), (195, 11179), (273, 7985), (455, 4791), (1365, 1597)]