20976920007

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{121081}}^1$

素因数の和:121223

約数の個数: 32

約数和(自身を含む): 30687022080

約数和(自身を除く): 9710102073

約数列:

[1, 3, 17, 43, 51, 79, 129, 237, 731, 1343, 2193, 3397, 4029, 10191, 57749, 121081, 173247, 363243, 2058377, 5206483, 6175131, 9565399, 15619449, 28696197, 88510211, 162611783, 265530633, 411312157, 487835349, 1233936471, 6992306669, 20976920007]

約数ペア:

[(1, 20976920007), (3, 6992306669), (17, 1233936471), (43, 487835349), (51, 411312157), (79, 265530633), (129, 162611783), (237, 88510211), (731, 28696197), (1343, 15619449), (2193, 9565399), (3397, 6175131), (4029, 5206483), (10191, 2058377), (57749, 363243), (121081, 173247)]