21684285

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1$

素因数の和:155

約数の個数: 96

約数和(自身を含む): 46545408

約数和(自身を除く): 24861123

約数列:

[1, 3, 5, 7, 9, 15, 21, 23, 35, 41, 45, 63, 69, 73, 105, 115, 123, 161, 205, 207, 219, 287, 315, 345, 365, 369, 483, 511, 615, 657, 805, 861, 943, 1035, 1095, 1435, 1449, 1533, 1679, 1845, 2415, 2555, 2583, 2829, 2993, 3285, 4305, 4599, 4715, 5037, 6601, 7245, 7665, 8395, 8487, 8979, 11753, 12915, 14145, 14965, 15111, 19803, 20951, 22995, 25185, 26937, 33005, 35259, 42435, 44895, 58765, 59409, 62853, 68839, 75555, 99015, 104755, 105777, 134685, 176295, 188559, 206517, 297045, 314265, 344195, 481873, 528885, 619551, 942795, 1032585, 1445619, 2409365, 3097755, 4336857, 7228095, 21684285]

約数ペア:

[(1, 21684285), (3, 7228095), (5, 4336857), (7, 3097755), (9, 2409365), (15, 1445619), (21, 1032585), (23, 942795), (35, 619551), (41, 528885), (45, 481873), (63, 344195), (69, 314265), (73, 297045), (105, 206517), (115, 188559), (123, 176295), (161, 134685), (205, 105777), (207, 104755), (219, 99015), (287, 75555), (315, 68839), (345, 62853), (365, 59409), (369, 58765), (483, 44895), (511, 42435), (615, 35259), (657, 33005), (805, 26937), (861, 25185), (943, 22995), (1035, 20951), (1095, 19803), (1435, 15111), (1449, 14965), (1533, 14145), (1679, 12915), (1845, 11753), (2415, 8979), (2555, 8487), (2583, 8395), (2829, 7665), (2993, 7245), (3285, 6601), (4305, 5037), (4599, 4715)]