20627205

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{3517}}^1$

素因数の和:3565

約数の個数: 32

約数和(自身を含む): 36474624

約数和(自身を除く): 15847419

約数列:

[1, 3, 5, 15, 17, 23, 51, 69, 85, 115, 255, 345, 391, 1173, 1955, 3517, 5865, 10551, 17585, 52755, 59789, 80891, 179367, 242673, 298945, 404455, 896835, 1213365, 1375147, 4125441, 6875735, 20627205]

約数ペア:

[(1, 20627205), (3, 6875735), (5, 4125441), (15, 1375147), (17, 1213365), (23, 896835), (51, 404455), (69, 298945), (85, 242673), (115, 179367), (255, 80891), (345, 59789), (391, 52755), (1173, 17585), (1955, 10551), (3517, 5865)]