21283172015

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{13763}}^1$

素因数の和:13928

約数の個数: 64

約数和(自身を含む): 32536774656

約数和(自身を除く): 11253602641

約数列:

[1, 5, 7, 17, 23, 35, 85, 113, 115, 119, 161, 391, 565, 595, 791, 805, 1921, 1955, 2599, 2737, 3955, 9605, 12995, 13447, 13685, 13763, 18193, 44183, 67235, 68815, 90965, 96341, 220915, 233971, 309281, 316549, 481705, 1169855, 1546405, 1555219, 1582745, 1637797, 2215843, 5381333, 7776095, 8188985, 10886533, 11079215, 26438723, 26906665, 35770037, 37669331, 54432665, 132193615, 178850185, 185071061, 188346655, 250390259, 608090629, 925355305, 1251951295, 3040453145, 4256634403, 21283172015]

約数ペア:

[(1, 21283172015), (5, 4256634403), (7, 3040453145), (17, 1251951295), (23, 925355305), (35, 608090629), (85, 250390259), (113, 188346655), (115, 185071061), (119, 178850185), (161, 132193615), (391, 54432665), (565, 37669331), (595, 35770037), (791, 26906665), (805, 26438723), (1921, 11079215), (1955, 10886533), (2599, 8188985), (2737, 7776095), (3955, 5381333), (9605, 2215843), (12995, 1637797), (13447, 1582745), (13685, 1555219), (13763, 1546405), (18193, 1169855), (44183, 481705), (67235, 316549), (68815, 309281), (90965, 233971), (96341, 220915)]