21889956987

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{389}}^1\times {\mathrm{1447}}^1$

素因数の和:2020

約数の個数: 48

約数和(自身を含む): 33036120000

約数和(自身を除く): 11146163013

約数列:

[1, 3, 9, 29, 87, 149, 261, 389, 447, 1167, 1341, 1447, 3501, 4321, 4341, 11281, 12963, 13023, 33843, 38889, 41963, 57961, 101529, 125889, 173883, 215603, 377667, 521649, 562883, 646809, 1680869, 1688649, 1940427, 5042607, 5065947, 6252487, 15127821, 16323607, 18757461, 48970821, 56272383, 83869567, 146912463, 251608701, 754826103, 2432217443, 7296652329, 21889956987]

約数ペア:

[(1, 21889956987), (3, 7296652329), (9, 2432217443), (29, 754826103), (87, 251608701), (149, 146912463), (261, 83869567), (389, 56272383), (447, 48970821), (1167, 18757461), (1341, 16323607), (1447, 15127821), (3501, 6252487), (4321, 5065947), (4341, 5042607), (11281, 1940427), (12963, 1688649), (13023, 1680869), (33843, 646809), (38889, 562883), (41963, 521649), (57961, 377667), (101529, 215603), (125889, 173883)]