19674668

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^2$

素因数の和:234

約数の個数: 36

約数和(自身を含む): 38123568

約数和(自身を除く): 18448900

約数列:

[1, 2, 4, 13, 26, 52, 71, 73, 142, 146, 284, 292, 923, 949, 1846, 1898, 3692, 3796, 5183, 5329, 10366, 10658, 20732, 21316, 67379, 69277, 134758, 138554, 269516, 277108, 378359, 756718, 1513436, 4918667, 9837334, 19674668]

約数ペア:

[(1, 19674668), (2, 9837334), (4, 4918667), (13, 1513436), (26, 756718), (52, 378359), (71, 277108), (73, 269516), (142, 138554), (146, 134758), (284, 69277), (292, 67379), (923, 21316), (949, 20732), (1846, 10658), (1898, 10366), (3692, 5329), (3796, 5183)]