21553610

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{4481}}^1$

素因数の和:4538

約数の個数: 32

約数和(自身を含む): 42919632

約数和(自身を除く): 21366022

約数列:

[1, 2, 5, 10, 13, 26, 37, 65, 74, 130, 185, 370, 481, 962, 2405, 4481, 4810, 8962, 22405, 44810, 58253, 116506, 165797, 291265, 331594, 582530, 828985, 1657970, 2155361, 4310722, 10776805, 21553610]

約数ペア:

[(1, 21553610), (2, 10776805), (5, 4310722), (10, 2155361), (13, 1657970), (26, 828985), (37, 582530), (65, 331594), (74, 291265), (130, 165797), (185, 116506), (370, 58253), (481, 44810), (962, 22405), (2405, 8962), (4481, 4810)]