218630356

素因数分解:

$2^2\times 7^2\times {\mathrm{521}}^1\times {\mathrm{2141}}^1$

素因数の和:2680

約数の個数: 36

約数和(自身を含む): 446131476

約数和(自身を除く): 227501120

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 521, 1042, 2084, 2141, 3647, 4282, 7294, 8564, 14588, 14987, 25529, 29974, 51058, 59948, 102116, 104909, 209818, 419636, 1115461, 2230922, 4461844, 7808227, 15616454, 31232908, 54657589, 109315178, 218630356]

約数ペア:

[(1, 218630356), (2, 109315178), (4, 54657589), (7, 31232908), (14, 15616454), (28, 7808227), (49, 4461844), (98, 2230922), (196, 1115461), (521, 419636), (1042, 209818), (2084, 104909), (2141, 102116), (3647, 59948), (4282, 51058), (7294, 29974), (8564, 25529), (14588, 14987)]