68184921

素因数分解:

$3^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:274

約数の個数: 48

約数和(自身を含む): 110315520

約数和(自身を除く): 42130599

約数列:

[1, 3, 7, 21, 47, 49, 71, 139, 141, 147, 213, 329, 417, 497, 973, 987, 1491, 2303, 2919, 3337, 3479, 6533, 6811, 6909, 9869, 10011, 10437, 19599, 20433, 23359, 29607, 45731, 69083, 70077, 137193, 163513, 207249, 320117, 463843, 483581, 490539, 960351, 1391529, 1450743, 3246901, 9740703, 22728307, 68184921]

約数ペア:

[(1, 68184921), (3, 22728307), (7, 9740703), (21, 3246901), (47, 1450743), (49, 1391529), (71, 960351), (139, 490539), (141, 483581), (147, 463843), (213, 320117), (329, 207249), (417, 163513), (497, 137193), (973, 70077), (987, 69083), (1491, 45731), (2303, 29607), (2919, 23359), (3337, 20433), (3479, 19599), (6533, 10437), (6811, 10011), (6909, 9869)]