21147112

素因数分解:

$2^3\times 7^1\times {\mathrm{89}}^1\times {\mathrm{4243}}^1$

素因数の和:4345

約数の個数: 32

約数和(自身を含む): 45835200

約数和(自身を除く): 24688088

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 89, 178, 356, 623, 712, 1246, 2492, 4243, 4984, 8486, 16972, 29701, 33944, 59402, 118804, 237608, 377627, 755254, 1510508, 2643389, 3021016, 5286778, 10573556, 21147112]

約数ペア:

[(1, 21147112), (2, 10573556), (4, 5286778), (7, 3021016), (8, 2643389), (14, 1510508), (28, 755254), (56, 377627), (89, 237608), (178, 118804), (356, 59402), (623, 33944), (712, 29701), (1246, 16972), (2492, 8486), (4243, 4984)]