20721648

素因数分解:

$2^4\times 3^1\times {\mathrm{433}}^1\times {\mathrm{997}}^1$

素因数の和:1441

約数の個数: 40

約数和(自身を含む): 53708368

約数和(自身を除く): 32986720

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 433, 866, 997, 1299, 1732, 1994, 2598, 2991, 3464, 3988, 5196, 5982, 6928, 7976, 10392, 11964, 15952, 20784, 23928, 47856, 431701, 863402, 1295103, 1726804, 2590206, 3453608, 5180412, 6907216, 10360824, 20721648]

約数ペア:

[(1, 20721648), (2, 10360824), (3, 6907216), (4, 5180412), (6, 3453608), (8, 2590206), (12, 1726804), (16, 1295103), (24, 863402), (48, 431701), (433, 47856), (866, 23928), (997, 20784), (1299, 15952), (1732, 11964), (1994, 10392), (2598, 7976), (2991, 6928), (3464, 5982), (3988, 5196)]