21703390

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{2969}}^1$

素因数の和:3036

約数の個数: 32

約数和(自身を含む): 42340320

約数和(自身を除く): 20636930

約数列:

[1, 2, 5, 10, 17, 34, 43, 85, 86, 170, 215, 430, 731, 1462, 2969, 3655, 5938, 7310, 14845, 29690, 50473, 100946, 127667, 252365, 255334, 504730, 638335, 1276670, 2170339, 4340678, 10851695, 21703390]

約数ペア:

[(1, 21703390), (2, 10851695), (5, 4340678), (10, 2170339), (17, 1276670), (34, 638335), (43, 504730), (85, 255334), (86, 252365), (170, 127667), (215, 100946), (430, 50473), (731, 29690), (1462, 14845), (2969, 7310), (3655, 5938)]