19870456

素因数分解:

$2^3\times {\mathrm{373}}^1\times {\mathrm{6659}}^1$

素因数の和:7038

約数の個数: 16

約数和(自身を含む): 37362600

約数和(自身を除く): 17492144

約数列:

[1, 2, 4, 8, 373, 746, 1492, 2984, 6659, 13318, 26636, 53272, 2483807, 4967614, 9935228, 19870456]

約数ペア:

[(1, 19870456), (2, 9935228), (4, 4967614), (8, 2483807), (373, 53272), (746, 26636), (1492, 13318), (2984, 6659)]