21788300

素因数分解:

$2^2\times 5^2\times {\mathrm{53}}^1\times {\mathrm{4111}}^1$

素因数の和:4178

約数の個数: 36

約数和(自身を含む): 48184416

約数和(自身を除く): 26396116

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 53, 100, 106, 212, 265, 530, 1060, 1325, 2650, 4111, 5300, 8222, 16444, 20555, 41110, 82220, 102775, 205550, 217883, 411100, 435766, 871532, 1089415, 2178830, 4357660, 5447075, 10894150, 21788300]

約数ペア:

[(1, 21788300), (2, 10894150), (4, 5447075), (5, 4357660), (10, 2178830), (20, 1089415), (25, 871532), (50, 435766), (53, 411100), (100, 217883), (106, 205550), (212, 102775), (265, 82220), (530, 41110), (1060, 20555), (1325, 16444), (2650, 8222), (4111, 5300)]