21604496

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{349}}^1$

素因数の和:483

約数の個数: 40

約数和(自身を含む): 43356600

約数和(自身を除く): 21752104

約数列:

[1, 2, 4, 8, 16, 53, 73, 106, 146, 212, 292, 349, 424, 584, 698, 848, 1168, 1396, 2792, 3869, 5584, 7738, 15476, 18497, 25477, 30952, 36994, 50954, 61904, 73988, 101908, 147976, 203816, 295952, 407632, 1350281, 2700562, 5401124, 10802248, 21604496]

約数ペア:

[(1, 21604496), (2, 10802248), (4, 5401124), (8, 2700562), (16, 1350281), (53, 407632), (73, 295952), (106, 203816), (146, 147976), (212, 101908), (292, 73988), (349, 61904), (424, 50954), (584, 36994), (698, 30952), (848, 25477), (1168, 18497), (1396, 15476), (2792, 7738), (3869, 5584)]