21934480

素因数分解:

$2^4\times 5^1\times {\mathrm{487}}^1\times {\mathrm{563}}^1$

素因数の和:1063

約数の個数: 40

約数和(自身を含む): 51193152

約数和(自身を除く): 29258672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 487, 563, 974, 1126, 1948, 2252, 2435, 2815, 3896, 4504, 4870, 5630, 7792, 9008, 9740, 11260, 19480, 22520, 38960, 45040, 274181, 548362, 1096724, 1370905, 2193448, 2741810, 4386896, 5483620, 10967240, 21934480]

約数ペア:

[(1, 21934480), (2, 10967240), (4, 5483620), (5, 4386896), (8, 2741810), (10, 2193448), (16, 1370905), (20, 1096724), (40, 548362), (80, 274181), (487, 45040), (563, 38960), (974, 22520), (1126, 19480), (1948, 11260), (2252, 9740), (2435, 9008), (2815, 7792), (3896, 5630), (4504, 4870)]