19866990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{421}}^1$

素因数の和:466

約数の個数: 96

約数和(自身を含む): 56575008

約数和(自身を除く): 36708018

約数列:

[1, 2, 3, 5, 6, 10, 11, 13, 15, 22, 26, 30, 33, 39, 55, 65, 66, 78, 110, 121, 130, 143, 165, 195, 242, 286, 330, 363, 390, 421, 429, 605, 715, 726, 842, 858, 1210, 1263, 1430, 1573, 1815, 2105, 2145, 2526, 3146, 3630, 4210, 4290, 4631, 4719, 5473, 6315, 7865, 9262, 9438, 10946, 12630, 13893, 15730, 16419, 23155, 23595, 27365, 27786, 32838, 46310, 47190, 50941, 54730, 60203, 69465, 82095, 101882, 120406, 138930, 152823, 164190, 180609, 254705, 301015, 305646, 361218, 509410, 602030, 662233, 764115, 903045, 1324466, 1528230, 1806090, 1986699, 3311165, 3973398, 6622330, 9933495, 19866990]

約数ペア:

[(1, 19866990), (2, 9933495), (3, 6622330), (5, 3973398), (6, 3311165), (10, 1986699), (11, 1806090), (13, 1528230), (15, 1324466), (22, 903045), (26, 764115), (30, 662233), (33, 602030), (39, 509410), (55, 361218), (65, 305646), (66, 301015), (78, 254705), (110, 180609), (121, 164190), (130, 152823), (143, 138930), (165, 120406), (195, 101882), (242, 82095), (286, 69465), (330, 60203), (363, 54730), (390, 50941), (421, 47190), (429, 46310), (605, 32838), (715, 27786), (726, 27365), (842, 23595), (858, 23155), (1210, 16419), (1263, 15730), (1430, 13893), (1573, 12630), (1815, 10946), (2105, 9438), (2145, 9262), (2526, 7865), (3146, 6315), (3630, 5473), (4210, 4719), (4290, 4631)]