20769945

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{359}}^1$

素因数の和:422

約数の個数: 64

約数和(自身を含む): 41472000

約数和(自身を除く): 20702055

約数列:

[1, 3, 5, 7, 15, 19, 21, 29, 35, 57, 87, 95, 105, 133, 145, 203, 285, 359, 399, 435, 551, 609, 665, 1015, 1077, 1653, 1795, 1995, 2513, 2755, 3045, 3857, 5385, 6821, 7539, 8265, 10411, 11571, 12565, 19285, 20463, 31233, 34105, 37695, 47747, 52055, 57855, 72877, 102315, 143241, 156165, 197809, 218631, 238735, 364385, 593427, 716205, 989045, 1093155, 1384663, 2967135, 4153989, 6923315, 20769945]

約数ペア:

[(1, 20769945), (3, 6923315), (5, 4153989), (7, 2967135), (15, 1384663), (19, 1093155), (21, 989045), (29, 716205), (35, 593427), (57, 364385), (87, 238735), (95, 218631), (105, 197809), (133, 156165), (145, 143241), (203, 102315), (285, 72877), (359, 57855), (399, 52055), (435, 47747), (551, 37695), (609, 34105), (665, 31233), (1015, 20463), (1077, 19285), (1653, 12565), (1795, 11571), (1995, 10411), (2513, 8265), (2755, 7539), (3045, 6821), (3857, 5385)]