21000687190

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{1621}}^1\times {\mathrm{185077}}^1$

素因数の和:186712

約数の個数: 32

約数和(自身を含む): 43228298304

約数和(自身を除く): 22227611114

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 1621, 3242, 8105, 11347, 16210, 22694, 56735, 113470, 185077, 370154, 925385, 1295539, 1850770, 2591078, 6477695, 12955390, 300009817, 600019634, 1500049085, 2100068719, 3000098170, 4200137438, 10500343595, 21000687190]

約数ペア:

[(1, 21000687190), (2, 10500343595), (5, 4200137438), (7, 3000098170), (10, 2100068719), (14, 1500049085), (35, 600019634), (70, 300009817), (1621, 12955390), (3242, 6477695), (8105, 2591078), (11347, 1850770), (16210, 1295539), (22694, 925385), (56735, 370154), (113470, 185077)]