21935120

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{14431}}^1$

素因数の和:14463

約数の個数: 40

約数和(自身を含む): 53687040

約数和(自身を除く): 31751920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 14431, 28862, 57724, 72155, 115448, 144310, 230896, 274189, 288620, 548378, 577240, 1096756, 1154480, 1370945, 2193512, 2741890, 4387024, 5483780, 10967560, 21935120]

約数ペア:

[(1, 21935120), (2, 10967560), (4, 5483780), (5, 4387024), (8, 2741890), (10, 2193512), (16, 1370945), (19, 1154480), (20, 1096756), (38, 577240), (40, 548378), (76, 288620), (80, 274189), (95, 230896), (152, 144310), (190, 115448), (304, 72155), (380, 57724), (760, 28862), (1520, 14431)]