20618982

素因数分解:

$2^1\times 3^3\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1$

素因数の和:258

約数の個数: 64

約数和(自身を含む): 47980800

約数和(自身を除く): 27361818

約数列:

[1, 2, 3, 6, 9, 18, 27, 41, 54, 67, 82, 123, 134, 139, 201, 246, 278, 369, 402, 417, 603, 738, 834, 1107, 1206, 1251, 1809, 2214, 2502, 2747, 3618, 3753, 5494, 5699, 7506, 8241, 9313, 11398, 16482, 17097, 18626, 24723, 27939, 34194, 49446, 51291, 55878, 74169, 83817, 102582, 148338, 153873, 167634, 251451, 307746, 381833, 502902, 763666, 1145499, 2290998, 3436497, 6872994, 10309491, 20618982]

約数ペア:

[(1, 20618982), (2, 10309491), (3, 6872994), (6, 3436497), (9, 2290998), (18, 1145499), (27, 763666), (41, 502902), (54, 381833), (67, 307746), (82, 251451), (123, 167634), (134, 153873), (139, 148338), (201, 102582), (246, 83817), (278, 74169), (369, 55878), (402, 51291), (417, 49446), (603, 34194), (738, 27939), (834, 24723), (1107, 18626), (1206, 17097), (1251, 16482), (1809, 11398), (2214, 9313), (2502, 8241), (2747, 7506), (3618, 5699), (3753, 5494)]