20933668

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^3\times {\mathrm{109}}^1$

素因数の和:177

約数の個数: 48

約数和(自身を含む): 44598400

約数和(自身を除く): 23664732

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 109, 133, 218, 266, 361, 436, 532, 722, 763, 1444, 1526, 2071, 2527, 3052, 4142, 5054, 6859, 8284, 10108, 13718, 14497, 27436, 28994, 39349, 48013, 57988, 78698, 96026, 157396, 192052, 275443, 550886, 747631, 1101772, 1495262, 2990524, 5233417, 10466834, 20933668]

約数ペア:

[(1, 20933668), (2, 10466834), (4, 5233417), (7, 2990524), (14, 1495262), (19, 1101772), (28, 747631), (38, 550886), (76, 275443), (109, 192052), (133, 157396), (218, 96026), (266, 78698), (361, 57988), (436, 48013), (532, 39349), (722, 28994), (763, 27436), (1444, 14497), (1526, 13718), (2071, 10108), (2527, 8284), (3052, 6859), (4142, 5054)]