21255900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{70853}}^1$

素因数の和:70870

約数の個数: 36

約数和(自身を含む): 61501272

約数和(自身を除く): 40245372

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 150, 300, 70853, 141706, 212559, 283412, 354265, 425118, 708530, 850236, 1062795, 1417060, 1771325, 2125590, 3542650, 4251180, 5313975, 7085300, 10627950, 21255900]

約数ペア:

[(1, 21255900), (2, 10627950), (3, 7085300), (4, 5313975), (5, 4251180), (6, 3542650), (10, 2125590), (12, 1771325), (15, 1417060), (20, 1062795), (25, 850236), (30, 708530), (50, 425118), (60, 354265), (75, 283412), (100, 212559), (150, 141706), (300, 70853)]