18803642

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:219

約数の個数: 48

約数和(自身を含む): 34409760

約数和(自身を除く): 15606118

約数列:

[1, 2, 11, 13, 22, 26, 43, 86, 121, 139, 143, 242, 278, 286, 473, 559, 946, 1118, 1529, 1573, 1807, 3058, 3146, 3614, 5203, 5977, 6149, 10406, 11954, 12298, 16819, 19877, 33638, 39754, 65747, 67639, 77701, 131494, 135278, 155402, 218647, 437294, 723217, 854711, 1446434, 1709422, 9401821, 18803642]

約数ペア:

[(1, 18803642), (2, 9401821), (11, 1709422), (13, 1446434), (22, 854711), (26, 723217), (43, 437294), (86, 218647), (121, 155402), (139, 135278), (143, 131494), (242, 77701), (278, 67639), (286, 65747), (473, 39754), (559, 33638), (946, 19877), (1118, 16819), (1529, 12298), (1573, 11954), (1807, 10406), (3058, 6149), (3146, 5977), (3614, 5203)]