21960378

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{563}}^1$

素因数の和:779

約数の個数: 48

約数和(自身を含む): 52262496

約数和(自身を除く): 30302118

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 197, 198, 394, 563, 591, 1126, 1182, 1689, 1773, 2167, 3378, 3546, 4334, 5067, 6193, 6501, 10134, 12386, 13002, 18579, 19503, 37158, 39006, 55737, 110911, 111474, 221822, 332733, 665466, 998199, 1220021, 1996398, 2440042, 3660063, 7320126, 10980189, 21960378]

約数ペア:

[(1, 21960378), (2, 10980189), (3, 7320126), (6, 3660063), (9, 2440042), (11, 1996398), (18, 1220021), (22, 998199), (33, 665466), (66, 332733), (99, 221822), (197, 111474), (198, 110911), (394, 55737), (563, 39006), (591, 37158), (1126, 19503), (1182, 18579), (1689, 13002), (1773, 12386), (2167, 10134), (3378, 6501), (3546, 6193), (4334, 5067)]