1688423331

素因数分解:

$3^1\times 7^3\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{727}}^1$

素因数の和:849

約数の個数: 64

約数和(自身を含む): 2744268800

約数和(自身を除く): 1055845469

約数列:

[1, 3, 7, 21, 37, 49, 61, 111, 147, 183, 259, 343, 427, 727, 777, 1029, 1281, 1813, 2181, 2257, 2989, 5089, 5439, 6771, 8967, 12691, 15267, 15799, 20923, 26899, 35623, 38073, 44347, 47397, 62769, 80697, 106869, 110593, 133041, 188293, 249361, 310429, 331779, 564879, 748083, 774151, 931287, 1318051, 1640839, 2173003, 2322453, 3954153, 4922517, 6519009, 9226357, 11485873, 15211021, 27679071, 34457619, 45633063, 80401111, 241203333, 562807777, 1688423331]

約数ペア:

[(1, 1688423331), (3, 562807777), (7, 241203333), (21, 80401111), (37, 45633063), (49, 34457619), (61, 27679071), (111, 15211021), (147, 11485873), (183, 9226357), (259, 6519009), (343, 4922517), (427, 3954153), (727, 2322453), (777, 2173003), (1029, 1640839), (1281, 1318051), (1813, 931287), (2181, 774151), (2257, 748083), (2989, 564879), (5089, 331779), (5439, 310429), (6771, 249361), (8967, 188293), (12691, 133041), (15267, 110593), (15799, 106869), (20923, 80697), (26899, 62769), (35623, 47397), (38073, 44347)]