821213965

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{49937}}^1$

素因数の和:49989

約数の個数: 32

約数和(自身を含む): 1208100096

約数和(自身を除く): 386886131

約数列:

[1, 5, 11, 13, 23, 55, 65, 115, 143, 253, 299, 715, 1265, 1495, 3289, 16445, 49937, 249685, 549307, 649181, 1148551, 2746535, 3245905, 5742755, 7140991, 12634061, 14931163, 35704955, 63170305, 74655815, 164242793, 821213965]

約数ペア:

[(1, 821213965), (5, 164242793), (11, 74655815), (13, 63170305), (23, 35704955), (55, 14931163), (65, 12634061), (115, 7140991), (143, 5742755), (253, 3245905), (299, 2746535), (715, 1148551), (1265, 649181), (1495, 549307), (3289, 249685), (16445, 49937)]