20577735

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{727}}^1$

素因数の和:792

約数の個数: 48

約数和(自身を含む): 38840256

約数和(自身を除く): 18262521

約数列:

[1, 3, 5, 9, 15, 17, 37, 45, 51, 85, 111, 153, 185, 255, 333, 555, 629, 727, 765, 1665, 1887, 2181, 3145, 3635, 5661, 6543, 9435, 10905, 12359, 26899, 28305, 32715, 37077, 61795, 80697, 111231, 134495, 185385, 242091, 403485, 457283, 556155, 1210455, 1371849, 2286415, 4115547, 6859245, 20577735]

約数ペア:

[(1, 20577735), (3, 6859245), (5, 4115547), (9, 2286415), (15, 1371849), (17, 1210455), (37, 556155), (45, 457283), (51, 403485), (85, 242091), (111, 185385), (153, 134495), (185, 111231), (255, 80697), (333, 61795), (555, 37077), (629, 32715), (727, 28305), (765, 26899), (1665, 12359), (1887, 10905), (2181, 9435), (3145, 6543), (3635, 5661)]