21991554

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{31327}}^1$

素因数の和:31351

約数の個数: 32

約数和(自身を含む): 52631040

約数和(自身を除く): 30639486

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 78, 117, 234, 351, 702, 31327, 62654, 93981, 187962, 281943, 407251, 563886, 814502, 845829, 1221753, 1691658, 2443506, 3665259, 7330518, 10995777, 21991554]

約数ペア:

[(1, 21991554), (2, 10995777), (3, 7330518), (6, 3665259), (9, 2443506), (13, 1691658), (18, 1221753), (26, 845829), (27, 814502), (39, 563886), (54, 407251), (78, 281943), (117, 187962), (234, 93981), (351, 62654), (702, 31327)]