20933715

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{439}}^1$

素因数の和:492

約数の個数: 48

約数和(自身を含む): 38903040

約数和(自身を除く): 17969325

約数列:

[1, 3, 5, 11, 15, 17, 33, 51, 55, 85, 165, 187, 255, 289, 439, 561, 867, 935, 1317, 1445, 2195, 2805, 3179, 4335, 4829, 6585, 7463, 9537, 14487, 15895, 22389, 24145, 37315, 47685, 72435, 82093, 111945, 126871, 246279, 380613, 410465, 634355, 1231395, 1395581, 1903065, 4186743, 6977905, 20933715]

約数ペア:

[(1, 20933715), (3, 6977905), (5, 4186743), (11, 1903065), (15, 1395581), (17, 1231395), (33, 634355), (51, 410465), (55, 380613), (85, 246279), (165, 126871), (187, 111945), (255, 82093), (289, 72435), (439, 47685), (561, 37315), (867, 24145), (935, 22389), (1317, 15895), (1445, 14487), (2195, 9537), (2805, 7463), (3179, 6585), (4335, 4829)]