21304472

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{20023}}^1$

素因数の和:20055

約数の個数: 32

約数和(自身を含む): 48057600

約数和(自身を除く): 26753128

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 133, 152, 266, 532, 1064, 20023, 40046, 80092, 140161, 160184, 280322, 380437, 560644, 760874, 1121288, 1521748, 2663059, 3043496, 5326118, 10652236, 21304472]

約数ペア:

[(1, 21304472), (2, 10652236), (4, 5326118), (7, 3043496), (8, 2663059), (14, 1521748), (19, 1121288), (28, 760874), (38, 560644), (56, 380437), (76, 280322), (133, 160184), (152, 140161), (266, 80092), (532, 40046), (1064, 20023)]