21430021823

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{251}}^1\times {\mathrm{19391}}^1$

素因数の和:19703

約数の個数: 32

約数和(自身を含む): 26740482048

約数和(自身を除く): 5310460225

約数列:

[1, 7, 17, 37, 119, 251, 259, 629, 1757, 4267, 4403, 9287, 19391, 29869, 65009, 135737, 157879, 329647, 717467, 1105153, 2307529, 4867141, 5022269, 12196939, 34069987, 82741397, 85378573, 180084217, 579189779, 1260589519, 3061431689, 21430021823]

約数ペア:

[(1, 21430021823), (7, 3061431689), (17, 1260589519), (37, 579189779), (119, 180084217), (251, 85378573), (259, 82741397), (629, 34069987), (1757, 12196939), (4267, 5022269), (4403, 4867141), (9287, 2307529), (19391, 1105153), (29869, 717467), (65009, 329647), (135737, 157879)]