21118496

素因数分解:

$2^5\times 7^1\times {\mathrm{29}}^1\times {\mathrm{3251}}^1$

素因数の和:3297

約数の個数: 48

約数和(自身を含む): 49170240

約数和(自身を除く): 28051744

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 29, 32, 56, 58, 112, 116, 203, 224, 232, 406, 464, 812, 928, 1624, 3248, 3251, 6496, 6502, 13004, 22757, 26008, 45514, 52016, 91028, 94279, 104032, 182056, 188558, 364112, 377116, 659953, 728224, 754232, 1319906, 1508464, 2639812, 3016928, 5279624, 10559248, 21118496]

約数ペア:

[(1, 21118496), (2, 10559248), (4, 5279624), (7, 3016928), (8, 2639812), (14, 1508464), (16, 1319906), (28, 754232), (29, 728224), (32, 659953), (56, 377116), (58, 364112), (112, 188558), (116, 182056), (203, 104032), (224, 94279), (232, 91028), (406, 52016), (464, 45514), (812, 26008), (928, 22757), (1624, 13004), (3248, 6502), (3251, 6496)]