21130830088

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{431}}^1\times {\mathrm{322549}}^1$

素因数の和:323005

約数の個数: 32

約数和(自身を含む): 41802480000

約数和(自身を除く): 20671649912

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 431, 862, 1724, 3448, 8189, 16378, 32756, 65512, 322549, 645098, 1290196, 2580392, 6128431, 12256862, 24513724, 49027448, 139018619, 278037238, 556074476, 1112148952, 2641353761, 5282707522, 10565415044, 21130830088]

約数ペア:

[(1, 21130830088), (2, 10565415044), (4, 5282707522), (8, 2641353761), (19, 1112148952), (38, 556074476), (76, 278037238), (152, 139018619), (431, 49027448), (862, 24513724), (1724, 12256862), (3448, 6128431), (8189, 2580392), (16378, 1290196), (32756, 645098), (65512, 322549)]