20216974275

素因数分解:

$3^6\times 5^2\times {\mathrm{743}}^1\times {\mathrm{1493}}^1$

素因数の和:2264

約数の個数: 84

約数和(自身を含む): 37662174288

約数和(自身を除く): 17445200013

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 243, 405, 675, 729, 743, 1215, 1493, 2025, 2229, 3645, 3715, 4479, 6075, 6687, 7465, 11145, 13437, 18225, 18575, 20061, 22395, 33435, 37325, 40311, 55725, 60183, 67185, 100305, 111975, 120933, 167175, 180549, 201555, 300915, 335925, 362799, 501525, 541647, 604665, 902745, 1007775, 1088397, 1109299, 1504575, 1813995, 2708235, 3023325, 3327897, 4513725, 5441985, 5546495, 9069975, 9983691, 13541175, 16639485, 27209925, 27732475, 29951073, 49918455, 83197425, 89853219, 149755365, 249592275, 269559657, 449266095, 748776825, 808678971, 1347798285, 2246330475, 4043394855, 6738991425, 20216974275]

約数ペア:

[(1, 20216974275), (3, 6738991425), (5, 4043394855), (9, 2246330475), (15, 1347798285), (25, 808678971), (27, 748776825), (45, 449266095), (75, 269559657), (81, 249592275), (135, 149755365), (225, 89853219), (243, 83197425), (405, 49918455), (675, 29951073), (729, 27732475), (743, 27209925), (1215, 16639485), (1493, 13541175), (2025, 9983691), (2229, 9069975), (3645, 5546495), (3715, 5441985), (4479, 4513725), (6075, 3327897), (6687, 3023325), (7465, 2708235), (11145, 1813995), (13437, 1504575), (18225, 1109299), (18575, 1088397), (20061, 1007775), (22395, 902745), (33435, 604665), (37325, 541647), (40311, 501525), (55725, 362799), (60183, 335925), (67185, 300915), (100305, 201555), (111975, 180549), (120933, 167175)]