989226721

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1\times {\mathrm{181}}^1$

素因数の和:505

約数の個数: 32

約数和(自身を含む): 1181456640

約数和(自身を除く): 192229919

約数列:

[1, 7, 41, 137, 139, 181, 287, 959, 973, 1267, 5617, 5699, 7421, 19043, 24797, 25159, 39319, 39893, 51947, 133301, 173579, 176113, 780763, 1016677, 1031519, 3446783, 5465341, 7116739, 7220633, 24127481, 141318103, 989226721]

約数ペア:

[(1, 989226721), (7, 141318103), (41, 24127481), (137, 7220633), (139, 7116739), (181, 5465341), (287, 3446783), (959, 1031519), (973, 1016677), (1267, 780763), (5617, 176113), (5699, 173579), (7421, 133301), (19043, 51947), (24797, 39893), (25159, 39319)]