20909856

素因数分解:

$2^5\times 3^1\times {\mathrm{11}}^1\times {\mathrm{19801}}^1$

素因数の和:19825

約数の個数: 48

約数和(自身を含む): 59881248

約数和(自身を除く): 38971392

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 32, 33, 44, 48, 66, 88, 96, 132, 176, 264, 352, 528, 1056, 19801, 39602, 59403, 79204, 118806, 158408, 217811, 237612, 316816, 435622, 475224, 633632, 653433, 871244, 950448, 1306866, 1742488, 1900896, 2613732, 3484976, 5227464, 6969952, 10454928, 20909856]

約数ペア:

[(1, 20909856), (2, 10454928), (3, 6969952), (4, 5227464), (6, 3484976), (8, 2613732), (11, 1900896), (12, 1742488), (16, 1306866), (22, 950448), (24, 871244), (32, 653433), (33, 633632), (44, 475224), (48, 435622), (66, 316816), (88, 237612), (96, 217811), (132, 158408), (176, 118806), (264, 79204), (352, 59403), (528, 39602), (1056, 19801)]