21007362008

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{138206329}}^1$

素因数の和:138206354

約数の個数: 16

約数和(自身を含む): 41461899000

約数和(自身を除く): 20454536992

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 138206329, 276412658, 552825316, 1105650632, 2625920251, 5251840502, 10503681004, 21007362008]

約数ペア:

[(1, 21007362008), (2, 10503681004), (4, 5251840502), (8, 2625920251), (19, 1105650632), (38, 552825316), (76, 276412658), (152, 138206329)]