21373016

素因数分解:

$2^3\times 7^3\times {\mathrm{7789}}^1$

素因数の和:7816

約数の個数: 32

約数和(自身を含む): 46740000

約数和(自身を除く): 25366984

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 343, 392, 686, 1372, 2744, 7789, 15578, 31156, 54523, 62312, 109046, 218092, 381661, 436184, 763322, 1526644, 2671627, 3053288, 5343254, 10686508, 21373016]

約数ペア:

[(1, 21373016), (2, 10686508), (4, 5343254), (7, 3053288), (8, 2671627), (14, 1526644), (28, 763322), (49, 436184), (56, 381661), (98, 218092), (196, 109046), (343, 62312), (392, 54523), (686, 31156), (1372, 15578), (2744, 7789)]