20053815

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{1571}}^1$

素因数の和:1639

約数の個数: 32

約数和(自身を含む): 34407936

約数和(自身を除く): 14354121

約数列:

[1, 3, 5, 15, 23, 37, 69, 111, 115, 185, 345, 555, 851, 1571, 2553, 4255, 4713, 7855, 12765, 23565, 36133, 58127, 108399, 174381, 180665, 290635, 541995, 871905, 1336921, 4010763, 6684605, 20053815]

約数ペア:

[(1, 20053815), (3, 6684605), (5, 4010763), (15, 1336921), (23, 871905), (37, 541995), (69, 290635), (111, 180665), (115, 174381), (185, 108399), (345, 58127), (555, 36133), (851, 23565), (1571, 12765), (2553, 7855), (4255, 4713)]