20803155

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{3547}}^1$

素因数の和:3595

約数の個数: 32

約数和(自身を含む): 36785664

約数和(自身を除く): 15982509

約数列:

[1, 3, 5, 15, 17, 23, 51, 69, 85, 115, 255, 345, 391, 1173, 1955, 3547, 5865, 10641, 17735, 53205, 60299, 81581, 180897, 244743, 301495, 407905, 904485, 1223715, 1386877, 4160631, 6934385, 20803155]

約数ペア:

[(1, 20803155), (3, 6934385), (5, 4160631), (15, 1386877), (17, 1223715), (23, 904485), (51, 407905), (69, 301495), (85, 244743), (115, 180897), (255, 81581), (345, 60299), (391, 53205), (1173, 17735), (1955, 10641), (3547, 5865)]