20595165

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1\times {\mathrm{223}}^1$

素因数の和:409

約数の個数: 32

約数和(自身を含む): 34062336

約数和(自身を除く): 13467171

約数列:

[1, 3, 5, 15, 47, 131, 141, 223, 235, 393, 655, 669, 705, 1115, 1965, 3345, 6157, 10481, 18471, 29213, 30785, 31443, 52405, 87639, 92355, 146065, 157215, 438195, 1373011, 4119033, 6865055, 20595165]

約数ペア:

[(1, 20595165), (3, 6865055), (5, 4119033), (15, 1373011), (47, 438195), (131, 157215), (141, 146065), (223, 92355), (235, 87639), (393, 52405), (655, 31443), (669, 30785), (705, 29213), (1115, 18471), (1965, 10481), (3345, 6157)]