18206775

素因数分解:

$3^9\times 5^2\times {\mathrm{37}}^1$

素因数の和:74

約数の個数: 60

約数和(自身を含む): 34779272

約数和(自身を除く): 16572497

約数列:

[1, 3, 5, 9, 15, 25, 27, 37, 45, 75, 81, 111, 135, 185, 225, 243, 333, 405, 555, 675, 729, 925, 999, 1215, 1665, 2025, 2187, 2775, 2997, 3645, 4995, 6075, 6561, 8325, 8991, 10935, 14985, 18225, 19683, 24975, 26973, 32805, 44955, 54675, 74925, 80919, 98415, 134865, 164025, 224775, 242757, 404595, 492075, 674325, 728271, 1213785, 2022975, 3641355, 6068925, 18206775]

約数ペア:

[(1, 18206775), (3, 6068925), (5, 3641355), (9, 2022975), (15, 1213785), (25, 728271), (27, 674325), (37, 492075), (45, 404595), (75, 242757), (81, 224775), (111, 164025), (135, 134865), (185, 98415), (225, 80919), (243, 74925), (333, 54675), (405, 44955), (555, 32805), (675, 26973), (729, 24975), (925, 19683), (999, 18225), (1215, 14985), (1665, 10935), (2025, 8991), (2187, 8325), (2775, 6561), (2997, 6075), (3645, 4995)]