18971576

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{9601}}^1$

素因数の和:9639

約数の個数: 32

約数和(自身を含む): 40328400

約数和(自身を除く): 21356824

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 988, 1976, 9601, 19202, 38404, 76808, 124813, 182419, 249626, 364838, 499252, 729676, 998504, 1459352, 2371447, 4742894, 9485788, 18971576]

約数ペア:

[(1, 18971576), (2, 9485788), (4, 4742894), (8, 2371447), (13, 1459352), (19, 998504), (26, 729676), (38, 499252), (52, 364838), (76, 249626), (104, 182419), (152, 124813), (247, 76808), (494, 38404), (988, 19202), (1976, 9601)]