19423845

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{383}}^1$

素因数の和:431

約数の個数: 72

約数和(自身を含む): 40974336

約数和(自身を除く): 21550491

約数列:

[1, 3, 5, 7, 9, 15, 21, 23, 35, 45, 49, 63, 69, 105, 115, 147, 161, 207, 245, 315, 345, 383, 441, 483, 735, 805, 1035, 1127, 1149, 1449, 1915, 2205, 2415, 2681, 3381, 3447, 5635, 5745, 7245, 8043, 8809, 10143, 13405, 16905, 17235, 18767, 24129, 26427, 40215, 44045, 50715, 56301, 61663, 79281, 93835, 120645, 132135, 168903, 184989, 281505, 308315, 396405, 431641, 554967, 844515, 924945, 1294923, 2158205, 2774835, 3884769, 6474615, 19423845]

約数ペア:

[(1, 19423845), (3, 6474615), (5, 3884769), (7, 2774835), (9, 2158205), (15, 1294923), (21, 924945), (23, 844515), (35, 554967), (45, 431641), (49, 396405), (63, 308315), (69, 281505), (105, 184989), (115, 168903), (147, 132135), (161, 120645), (207, 93835), (245, 79281), (315, 61663), (345, 56301), (383, 50715), (441, 44045), (483, 40215), (735, 26427), (805, 24129), (1035, 18767), (1127, 17235), (1149, 16905), (1449, 13405), (1915, 10143), (2205, 8809), (2415, 8043), (2681, 7245), (3381, 5745), (3447, 5635)]