19717854

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{379}}^1$

素因数の和:449

約数の個数: 64

約数和(自身を含む): 45964800

約数和(自身を除く): 26246946

約数列:

[1, 2, 3, 6, 13, 23, 26, 29, 39, 46, 58, 69, 78, 87, 138, 174, 299, 377, 379, 598, 667, 754, 758, 897, 1131, 1137, 1334, 1794, 2001, 2262, 2274, 4002, 4927, 8671, 8717, 9854, 10991, 14781, 17342, 17434, 21982, 26013, 26151, 29562, 32973, 52026, 52302, 65946, 113321, 142883, 226642, 252793, 285766, 339963, 428649, 505586, 679926, 758379, 857298, 1516758, 3286309, 6572618, 9858927, 19717854]

約数ペア:

[(1, 19717854), (2, 9858927), (3, 6572618), (6, 3286309), (13, 1516758), (23, 857298), (26, 758379), (29, 679926), (39, 505586), (46, 428649), (58, 339963), (69, 285766), (78, 252793), (87, 226642), (138, 142883), (174, 113321), (299, 65946), (377, 52302), (379, 52026), (598, 32973), (667, 29562), (754, 26151), (758, 26013), (897, 21982), (1131, 17434), (1137, 17342), (1334, 14781), (1794, 10991), (2001, 9854), (2262, 8717), (2274, 8671), (4002, 4927)]