20423655

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{2819}}^1$

素因数の和:2860

約数の個数: 48

約数和(自身を含む): 42232320

約数和(自身を除く): 21808665

約数列:

[1, 3, 5, 7, 9, 15, 21, 23, 35, 45, 63, 69, 105, 115, 161, 207, 315, 345, 483, 805, 1035, 1449, 2415, 2819, 7245, 8457, 14095, 19733, 25371, 42285, 59199, 64837, 98665, 126855, 177597, 194511, 295995, 324185, 453859, 583533, 887985, 972555, 1361577, 2269295, 2917665, 4084731, 6807885, 20423655]

約数ペア:

[(1, 20423655), (3, 6807885), (5, 4084731), (7, 2917665), (9, 2269295), (15, 1361577), (21, 972555), (23, 887985), (35, 583533), (45, 453859), (63, 324185), (69, 295995), (105, 194511), (115, 177597), (161, 126855), (207, 98665), (315, 64837), (345, 59199), (483, 42285), (805, 25371), (1035, 19733), (1449, 14095), (2415, 8457), (2819, 7245)]