20157465

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{311}}^1$

素因数の和:497

約数の個数: 32

約数和(自身を含む): 33696000

約数和(自身を除く): 13538535

約数列:

[1, 3, 5, 15, 29, 87, 145, 149, 311, 435, 447, 745, 933, 1555, 2235, 4321, 4665, 9019, 12963, 21605, 27057, 45095, 46339, 64815, 135285, 139017, 231695, 695085, 1343831, 4031493, 6719155, 20157465]

約数ペア:

[(1, 20157465), (3, 6719155), (5, 4031493), (15, 1343831), (29, 695085), (87, 231695), (145, 139017), (149, 135285), (311, 64815), (435, 46339), (447, 45095), (745, 27057), (933, 21605), (1555, 12963), (2235, 9019), (4321, 4665)]