21783650

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{571}}^1$

素因数の和:699

約数の個数: 48

約数和(自身を含む): 46812480

約数和(自身を除く): 25028830

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 109, 175, 218, 350, 545, 571, 763, 1090, 1142, 1526, 2725, 2855, 3815, 3997, 5450, 5710, 7630, 7994, 14275, 19075, 19985, 28550, 38150, 39970, 62239, 99925, 124478, 199850, 311195, 435673, 622390, 871346, 1555975, 2178365, 3111950, 4356730, 10891825, 21783650]

約数ペア:

[(1, 21783650), (2, 10891825), (5, 4356730), (7, 3111950), (10, 2178365), (14, 1555975), (25, 871346), (35, 622390), (50, 435673), (70, 311195), (109, 199850), (175, 124478), (218, 99925), (350, 62239), (545, 39970), (571, 38150), (763, 28550), (1090, 19985), (1142, 19075), (1526, 14275), (2725, 7994), (2855, 7630), (3815, 5710), (3997, 5450)]