21182200

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{8147}}^1$

素因数の和:8176

約数の個数: 48

約数和(自身を含む): 53043480

約数和(自身を除く): 31861280

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 200, 260, 325, 520, 650, 1300, 2600, 8147, 16294, 32588, 40735, 65176, 81470, 105911, 162940, 203675, 211822, 325880, 407350, 423644, 529555, 814700, 847288, 1059110, 1629400, 2118220, 2647775, 4236440, 5295550, 10591100, 21182200]

約数ペア:

[(1, 21182200), (2, 10591100), (4, 5295550), (5, 4236440), (8, 2647775), (10, 2118220), (13, 1629400), (20, 1059110), (25, 847288), (26, 814700), (40, 529555), (50, 423644), (52, 407350), (65, 325880), (100, 211822), (104, 203675), (130, 162940), (200, 105911), (260, 81470), (325, 65176), (520, 40735), (650, 32588), (1300, 16294), (2600, 8147)]