18784444

素因数分解:

$2^2\times 7^2\times {\mathrm{239}}^1\times {\mathrm{401}}^1$

素因数の和:658

約数の個数: 36

約数和(自身を含む): 38495520

約数和(自身を除く): 19711076

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 239, 401, 478, 802, 956, 1604, 1673, 2807, 3346, 5614, 6692, 11228, 11711, 19649, 23422, 39298, 46844, 78596, 95839, 191678, 383356, 670873, 1341746, 2683492, 4696111, 9392222, 18784444]

約数ペア:

[(1, 18784444), (2, 9392222), (4, 4696111), (7, 2683492), (14, 1341746), (28, 670873), (49, 383356), (98, 191678), (196, 95839), (239, 78596), (401, 46844), (478, 39298), (802, 23422), (956, 19649), (1604, 11711), (1673, 11228), (2807, 6692), (3346, 5614)]