20767965

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{3541}}^1$

素因数の和:3589

約数の個数: 32

約数和(自身を含む): 36723456

約数和(自身を除く): 15955491

約数列:

[1, 3, 5, 15, 17, 23, 51, 69, 85, 115, 255, 345, 391, 1173, 1955, 3541, 5865, 10623, 17705, 53115, 60197, 81443, 180591, 244329, 300985, 407215, 902955, 1221645, 1384531, 4153593, 6922655, 20767965]

約数ペア:

[(1, 20767965), (3, 6922655), (5, 4153593), (15, 1384531), (17, 1221645), (23, 902955), (51, 407215), (69, 300985), (85, 244329), (115, 180591), (255, 81443), (345, 60197), (391, 53115), (1173, 17705), (1955, 10623), (3541, 5865)]