21861675

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^3\times {\mathrm{73}}^1$

素因数の和:122

約数の個数: 72

約数和(自身を含む): 43659408

約数和(自身を除く): 21797733

約数列:

[1, 3, 5, 9, 11, 15, 25, 33, 45, 55, 73, 75, 99, 121, 165, 219, 225, 275, 363, 365, 495, 605, 657, 803, 825, 1089, 1095, 1331, 1815, 1825, 2409, 2475, 3025, 3285, 3993, 4015, 5445, 5475, 6655, 7227, 8833, 9075, 11979, 12045, 16425, 19965, 20075, 26499, 27225, 33275, 36135, 44165, 59895, 60225, 79497, 97163, 99825, 132495, 180675, 220825, 291489, 299475, 397485, 485815, 662475, 874467, 1457445, 1987425, 2429075, 4372335, 7287225, 21861675]

約数ペア:

[(1, 21861675), (3, 7287225), (5, 4372335), (9, 2429075), (11, 1987425), (15, 1457445), (25, 874467), (33, 662475), (45, 485815), (55, 397485), (73, 299475), (75, 291489), (99, 220825), (121, 180675), (165, 132495), (219, 99825), (225, 97163), (275, 79497), (363, 60225), (365, 59895), (495, 44165), (605, 36135), (657, 33275), (803, 27225), (825, 26499), (1089, 20075), (1095, 19965), (1331, 16425), (1815, 12045), (1825, 11979), (2409, 9075), (2475, 8833), (3025, 7227), (3285, 6655), (3993, 5475), (4015, 5445)]