21605610

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{55399}}^1$

素因数の和:55422

約数の個数: 32

約数和(自身を含む): 55843200

約数和(自身を除く): 34237590

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 55399, 110798, 166197, 276995, 332394, 553990, 720187, 830985, 1440374, 1661970, 2160561, 3600935, 4321122, 7201870, 10802805, 21605610]

約数ペア:

[(1, 21605610), (2, 10802805), (3, 7201870), (5, 4321122), (6, 3600935), (10, 2160561), (13, 1661970), (15, 1440374), (26, 830985), (30, 720187), (39, 553990), (65, 332394), (78, 276995), (130, 166197), (195, 110798), (390, 55399)]