21445138

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{449}}^1$

素因数の和:642

約数の個数: 32

約数和(自身を含む): 38102400

約数和(自身を除く): 16657262

約数列:

[1, 2, 11, 13, 22, 26, 143, 167, 286, 334, 449, 898, 1837, 2171, 3674, 4342, 4939, 5837, 9878, 11674, 23881, 47762, 64207, 74983, 128414, 149966, 824813, 974779, 1649626, 1949558, 10722569, 21445138]

約数ペア:

[(1, 21445138), (2, 10722569), (11, 1949558), (13, 1649626), (22, 974779), (26, 824813), (143, 149966), (167, 128414), (286, 74983), (334, 64207), (449, 47762), (898, 23881), (1837, 11674), (2171, 9878), (3674, 5837), (4342, 4939)]