18991686

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{397}}^1$

素因数の和:493

約数の個数: 64

約数和(自身を含む): 46766592

約数和(自身を除く): 27774906

約数列:

[1, 2, 3, 6, 7, 14, 17, 21, 34, 42, 51, 67, 102, 119, 134, 201, 238, 357, 397, 402, 469, 714, 794, 938, 1139, 1191, 1407, 2278, 2382, 2779, 2814, 3417, 5558, 6749, 6834, 7973, 8337, 13498, 15946, 16674, 20247, 23919, 26599, 40494, 47243, 47838, 53198, 79797, 94486, 141729, 159594, 186193, 283458, 372386, 452183, 558579, 904366, 1117158, 1356549, 2713098, 3165281, 6330562, 9495843, 18991686]

約数ペア:

[(1, 18991686), (2, 9495843), (3, 6330562), (6, 3165281), (7, 2713098), (14, 1356549), (17, 1117158), (21, 904366), (34, 558579), (42, 452183), (51, 372386), (67, 283458), (102, 186193), (119, 159594), (134, 141729), (201, 94486), (238, 79797), (357, 53198), (397, 47838), (402, 47243), (469, 40494), (714, 26599), (794, 23919), (938, 20247), (1139, 16674), (1191, 15946), (1407, 13498), (2278, 8337), (2382, 7973), (2779, 6834), (2814, 6749), (3417, 5558)]