21145988

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{421}}^1\times {\mathrm{433}}^1$

素因数の和:887

約数の個数: 24

約数和(自身を含む): 38461080

約数和(自身を除く): 17315092

約数列:

[1, 2, 4, 29, 58, 116, 421, 433, 842, 866, 1684, 1732, 12209, 12557, 24418, 25114, 48836, 50228, 182293, 364586, 729172, 5286497, 10572994, 21145988]

約数ペア:

[(1, 21145988), (2, 10572994), (4, 5286497), (29, 729172), (58, 364586), (116, 182293), (421, 50228), (433, 48836), (842, 25114), (866, 24418), (1684, 12557), (1732, 12209)]