13438005

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{389}}^1$

素因数の和:458

約数の個数: 48

約数和(自身を含む): 25608960

約数和(自身を除く): 12170955

約数列:

[1, 3, 5, 7, 15, 21, 35, 47, 49, 105, 141, 147, 235, 245, 329, 389, 705, 735, 987, 1167, 1645, 1945, 2303, 2723, 4935, 5835, 6909, 8169, 11515, 13615, 18283, 19061, 34545, 40845, 54849, 57183, 91415, 95305, 127981, 274245, 285915, 383943, 639905, 895867, 1919715, 2687601, 4479335, 13438005]

約数ペア:

[(1, 13438005), (3, 4479335), (5, 2687601), (7, 1919715), (15, 895867), (21, 639905), (35, 383943), (47, 285915), (49, 274245), (105, 127981), (141, 95305), (147, 91415), (235, 57183), (245, 54849), (329, 40845), (389, 34545), (705, 19061), (735, 18283), (987, 13615), (1167, 11515), (1645, 8169), (1945, 6909), (2303, 5835), (2723, 4935)]