221838488

素因数分解:

$2^3\times {\mathrm{157}}^1\times {\mathrm{347}}^1\times {\mathrm{509}}^1$

素因数の和:1019

約数の個数: 32

約数和(自身を含む): 420627600

約数和(自身を除く): 198789112

約数列:

[1, 2, 4, 8, 157, 314, 347, 509, 628, 694, 1018, 1256, 1388, 2036, 2776, 4072, 54479, 79913, 108958, 159826, 176623, 217916, 319652, 353246, 435832, 639304, 706492, 1412984, 27729811, 55459622, 110919244, 221838488]

約数ペア:

[(1, 221838488), (2, 110919244), (4, 55459622), (8, 27729811), (157, 1412984), (314, 706492), (347, 639304), (509, 435832), (628, 353246), (694, 319652), (1018, 217916), (1256, 176623), (1388, 159826), (2036, 108958), (2776, 79913), (4072, 54479)]