21266595

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{373}}^1$

素因数の和:572

約数の個数: 48

約数和(自身を含む): 42474432

約数和(自身を除く): 21207837

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 181, 315, 373, 543, 905, 1119, 1267, 1629, 1865, 2611, 2715, 3357, 3801, 5595, 6335, 7833, 8145, 11403, 13055, 16785, 19005, 23499, 39165, 57015, 67513, 117495, 202539, 337565, 472591, 607617, 1012695, 1417773, 2362955, 3038085, 4253319, 7088865, 21266595]

約数ペア:

[(1, 21266595), (3, 7088865), (5, 4253319), (7, 3038085), (9, 2362955), (15, 1417773), (21, 1012695), (35, 607617), (45, 472591), (63, 337565), (105, 202539), (181, 117495), (315, 67513), (373, 57015), (543, 39165), (905, 23499), (1119, 19005), (1267, 16785), (1629, 13055), (1865, 11403), (2611, 8145), (2715, 7833), (3357, 6335), (3801, 5595)]