21904806

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2789}}^1$

素因数の和:2829

約数の個数: 64

約数和(自身を含む): 57853440

約数和(自身を除く): 35948634

約数列:

[1, 2, 3, 6, 7, 11, 14, 17, 21, 22, 33, 34, 42, 51, 66, 77, 102, 119, 154, 187, 231, 238, 357, 374, 462, 561, 714, 1122, 1309, 2618, 2789, 3927, 5578, 7854, 8367, 16734, 19523, 30679, 39046, 47413, 58569, 61358, 92037, 94826, 117138, 142239, 184074, 214753, 284478, 331891, 429506, 521543, 644259, 663782, 995673, 1043086, 1288518, 1564629, 1991346, 3129258, 3650801, 7301602, 10952403, 21904806]

約数ペア:

[(1, 21904806), (2, 10952403), (3, 7301602), (6, 3650801), (7, 3129258), (11, 1991346), (14, 1564629), (17, 1288518), (21, 1043086), (22, 995673), (33, 663782), (34, 644259), (42, 521543), (51, 429506), (66, 331891), (77, 284478), (102, 214753), (119, 184074), (154, 142239), (187, 117138), (231, 94826), (238, 92037), (357, 61358), (374, 58569), (462, 47413), (561, 39046), (714, 30679), (1122, 19523), (1309, 16734), (2618, 8367), (2789, 7854), (3927, 5578)]