2021103495

素因数分解:

$3^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{216973}}^1$

素因数の和:217013

約数の個数: 40

約数和(自身を含む): 3780554976

約数和(自身を除く): 1759451481

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 81, 115, 135, 207, 345, 405, 621, 1035, 1863, 3105, 9315, 216973, 650919, 1084865, 1952757, 3254595, 4990379, 5858271, 9763785, 14971137, 17574813, 24951895, 29291355, 44913411, 74855685, 87874065, 134740233, 224567055, 404220699, 673701165, 2021103495]

約数ペア:

[(1, 2021103495), (3, 673701165), (5, 404220699), (9, 224567055), (15, 134740233), (23, 87874065), (27, 74855685), (45, 44913411), (69, 29291355), (81, 24951895), (115, 17574813), (135, 14971137), (207, 9763785), (345, 5858271), (405, 4990379), (621, 3254595), (1035, 1952757), (1863, 1084865), (3105, 650919), (9315, 216973)]