9991948

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{1801}}^1$

素因数の和:1897

約数の個数: 24

約数和(自身を含む): 18668720

約数和(自身を除く): 8676772

約数列:

[1, 2, 4, 19, 38, 73, 76, 146, 292, 1387, 1801, 2774, 3602, 5548, 7204, 34219, 68438, 131473, 136876, 262946, 525892, 2497987, 4995974, 9991948]

約数ペア:

[(1, 9991948), (2, 4995974), (4, 2497987), (19, 525892), (38, 262946), (73, 136876), (76, 131473), (146, 68438), (292, 34219), (1387, 7204), (1801, 5548), (2774, 3602)]