21420490

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23539}}^1$

素因数の和:23566

約数の個数: 32

約数和(自身を含む): 47456640

約数和(自身を除く): 26036150

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 23539, 47078, 117695, 164773, 235390, 306007, 329546, 612014, 823865, 1530035, 1647730, 2142049, 3060070, 4284098, 10710245, 21420490]

約数ペア:

[(1, 21420490), (2, 10710245), (5, 4284098), (7, 3060070), (10, 2142049), (13, 1647730), (14, 1530035), (26, 823865), (35, 612014), (65, 329546), (70, 306007), (91, 235390), (130, 164773), (182, 117695), (455, 47078), (910, 23539)]