20454735

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{10253}}^1$

素因数の和:10287

約数の個数: 32

約数和(自身を含む): 39375360

約数和(自身を除く): 18920625

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 95, 105, 133, 285, 399, 665, 1995, 10253, 30759, 51265, 71771, 153795, 194807, 215313, 358855, 584421, 974035, 1076565, 1363649, 2922105, 4090947, 6818245, 20454735]

約数ペア:

[(1, 20454735), (3, 6818245), (5, 4090947), (7, 2922105), (15, 1363649), (19, 1076565), (21, 974035), (35, 584421), (57, 358855), (95, 215313), (105, 194807), (133, 153795), (285, 71771), (399, 51265), (665, 30759), (1995, 10253)]