20544915

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1\times {\mathrm{191}}^1$

素因数の和:371

約数の個数: 32

約数和(自身を含む): 33841152

約数和(自身を除く): 13296237

約数列:

[1, 3, 5, 15, 71, 101, 191, 213, 303, 355, 505, 573, 955, 1065, 1515, 2865, 7171, 13561, 19291, 21513, 35855, 40683, 57873, 67805, 96455, 107565, 203415, 289365, 1369661, 4108983, 6848305, 20544915]

約数ペア:

[(1, 20544915), (3, 6848305), (5, 4108983), (15, 1369661), (71, 289365), (101, 203415), (191, 107565), (213, 96455), (303, 67805), (355, 57873), (505, 40683), (573, 35855), (955, 21513), (1065, 19291), (1515, 13561), (2865, 7171)]