20704782

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{191}}^1$

素因数の和:321

約数の個数: 64

約数和(自身を含む): 49766400

約数和(自身を除く): 29061618

約数列:

[1, 2, 3, 6, 7, 14, 21, 29, 42, 58, 87, 89, 174, 178, 191, 203, 267, 382, 406, 534, 573, 609, 623, 1146, 1218, 1246, 1337, 1869, 2581, 2674, 3738, 4011, 5162, 5539, 7743, 8022, 11078, 15486, 16617, 16999, 18067, 33234, 33998, 36134, 38773, 50997, 54201, 77546, 101994, 108402, 116319, 118993, 232638, 237986, 356979, 492971, 713958, 985942, 1478913, 2957826, 3450797, 6901594, 10352391, 20704782]

約数ペア:

[(1, 20704782), (2, 10352391), (3, 6901594), (6, 3450797), (7, 2957826), (14, 1478913), (21, 985942), (29, 713958), (42, 492971), (58, 356979), (87, 237986), (89, 232638), (174, 118993), (178, 116319), (191, 108402), (203, 101994), (267, 77546), (382, 54201), (406, 50997), (534, 38773), (573, 36134), (609, 33998), (623, 33234), (1146, 18067), (1218, 16999), (1246, 16617), (1337, 15486), (1869, 11078), (2581, 8022), (2674, 7743), (3738, 5539), (4011, 5162)]