21669910

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{1327}}^1$

素因数の和:1428

約数の個数: 32

約数和(自身を含む): 41306112

約数和(自身を除く): 19636202

約数列:

[1, 2, 5, 10, 23, 46, 71, 115, 142, 230, 355, 710, 1327, 1633, 2654, 3266, 6635, 8165, 13270, 16330, 30521, 61042, 94217, 152605, 188434, 305210, 471085, 942170, 2166991, 4333982, 10834955, 21669910]

約数ペア:

[(1, 21669910), (2, 10834955), (5, 4333982), (10, 2166991), (23, 942170), (46, 471085), (71, 305210), (115, 188434), (142, 152605), (230, 94217), (355, 61042), (710, 30521), (1327, 16330), (1633, 13270), (2654, 8165), (3266, 6635)]