20741745

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{1019}}^1$

素因数の和:1109

約数の個数: 32

約数和(自身を含む): 35251200

約数和(自身を除く): 14509455

約数列:

[1, 3, 5, 15, 23, 59, 69, 115, 177, 295, 345, 885, 1019, 1357, 3057, 4071, 5095, 6785, 15285, 20355, 23437, 60121, 70311, 117185, 180363, 300605, 351555, 901815, 1382783, 4148349, 6913915, 20741745]

約数ペア:

[(1, 20741745), (3, 6913915), (5, 4148349), (15, 1382783), (23, 901815), (59, 351555), (69, 300605), (115, 180363), (177, 117185), (295, 70311), (345, 60121), (885, 23437), (1019, 20355), (1357, 15285), (3057, 6785), (4071, 5095)]