21321256

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{3319}}^1$

素因数の和:3409

約数の個数: 32

約数和(自身を含む): 44222400

約数和(自身を除く): 22901144

約数列:

[1, 2, 4, 8, 11, 22, 44, 73, 88, 146, 292, 584, 803, 1606, 3212, 3319, 6424, 6638, 13276, 26552, 36509, 73018, 146036, 242287, 292072, 484574, 969148, 1938296, 2665157, 5330314, 10660628, 21321256]

約数ペア:

[(1, 21321256), (2, 10660628), (4, 5330314), (8, 2665157), (11, 1938296), (22, 969148), (44, 484574), (73, 292072), (88, 242287), (146, 146036), (292, 73018), (584, 36509), (803, 26552), (1606, 13276), (3212, 6638), (3319, 6424)]