21313592

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{140221}}^1$

素因数の和:140246

約数の個数: 16

約数和(自身を含む): 42066600

約数和(自身を除く): 20753008

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 140221, 280442, 560884, 1121768, 2664199, 5328398, 10656796, 21313592]

約数ペア:

[(1, 21313592), (2, 10656796), (4, 5328398), (8, 2664199), (19, 1121768), (38, 560884), (76, 280442), (152, 140221)]