19847156

素因数分解:

$2^2\times 7^2\times {\mathrm{109}}^1\times {\mathrm{929}}^1$

素因数の和:1056

約数の個数: 36

約数和(自身を含む): 40817700

約数和(自身を除く): 20970544

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 109, 196, 218, 436, 763, 929, 1526, 1858, 3052, 3716, 5341, 6503, 10682, 13006, 21364, 26012, 45521, 91042, 101261, 182084, 202522, 405044, 708827, 1417654, 2835308, 4961789, 9923578, 19847156]

約数ペア:

[(1, 19847156), (2, 9923578), (4, 4961789), (7, 2835308), (14, 1417654), (28, 708827), (49, 405044), (98, 202522), (109, 182084), (196, 101261), (218, 91042), (436, 45521), (763, 26012), (929, 21364), (1526, 13006), (1858, 10682), (3052, 6503), (3716, 5341)]