20972494

素因数分解:

$2^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1\times {\mathrm{1997}}^1$

素因数の和:2147

約数の個数: 16

約数和(自身を含む): 32367600

約数和(自身を除く): 11395106

約数列:

[1, 2, 59, 89, 118, 178, 1997, 3994, 5251, 10502, 117823, 177733, 235646, 355466, 10486247, 20972494]

約数ペア:

[(1, 20972494), (2, 10486247), (59, 355466), (89, 235646), (118, 177733), (178, 117823), (1997, 10502), (3994, 5251)]