21161402

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{3547}}^1$

素因数の和:3725

約数の個数: 16

約数和(自身を含む): 33635040

約数和(自身を除く): 12473638

約数列:

[1, 2, 19, 38, 157, 314, 2983, 3547, 5966, 7094, 67393, 134786, 556879, 1113758, 10580701, 21161402]

約数ペア:

[(1, 21161402), (2, 10580701), (19, 1113758), (38, 556879), (157, 134786), (314, 67393), (2983, 7094), (3547, 5966)]