213530905

素因数分解:

$5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{2677}}^1$

素因数の和:2785

約数の個数: 32

約数和(自身を含む): 305420544

約数和(自身を除く): 91889639

約数列:

[1, 5, 7, 35, 43, 53, 215, 265, 301, 371, 1505, 1855, 2279, 2677, 11395, 13385, 15953, 18739, 79765, 93695, 115111, 141881, 575555, 709405, 805777, 993167, 4028885, 4965835, 6100883, 30504415, 42706181, 213530905]

約数ペア:

[(1, 213530905), (5, 42706181), (7, 30504415), (35, 6100883), (43, 4965835), (53, 4028885), (215, 993167), (265, 805777), (301, 709405), (371, 575555), (1505, 141881), (1855, 115111), (2279, 93695), (2677, 79765), (11395, 18739), (13385, 15953)]