21138610

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{1259}}^1$

素因数の和:1362

約数の個数: 32

約数和(自身を含む): 40279680

約数和(自身を除く): 19141070

約数列:

[1, 2, 5, 10, 23, 46, 73, 115, 146, 230, 365, 730, 1259, 1679, 2518, 3358, 6295, 8395, 12590, 16790, 28957, 57914, 91907, 144785, 183814, 289570, 459535, 919070, 2113861, 4227722, 10569305, 21138610]

約数ペア:

[(1, 21138610), (2, 10569305), (5, 4227722), (10, 2113861), (23, 919070), (46, 459535), (73, 289570), (115, 183814), (146, 144785), (230, 91907), (365, 57914), (730, 28957), (1259, 16790), (1679, 12590), (2518, 8395), (3358, 6295)]