18668716

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{163}}^1$

素因数の和:334

約数の個数: 48

約数和(自身を含む): 38021760

約数和(自身を除く): 19353044

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 137, 163, 209, 274, 326, 418, 548, 652, 836, 1507, 1793, 2603, 3014, 3097, 3586, 5206, 6028, 6194, 7172, 10412, 12388, 22331, 28633, 34067, 44662, 57266, 68134, 89324, 114532, 136268, 245641, 424289, 491282, 848578, 982564, 1697156, 4667179, 9334358, 18668716]

約数ペア:

[(1, 18668716), (2, 9334358), (4, 4667179), (11, 1697156), (19, 982564), (22, 848578), (38, 491282), (44, 424289), (76, 245641), (137, 136268), (163, 114532), (209, 89324), (274, 68134), (326, 57266), (418, 44662), (548, 34067), (652, 28633), (836, 22331), (1507, 12388), (1793, 10412), (2603, 7172), (3014, 6194), (3097, 6028), (3586, 5206)]