217778847

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{3407}}^1$

素因数の和:3583

約数の個数: 32

約数和(自身を含む): 343526400

約数和(自身を除く): 125747553

約数列:

[1, 3, 11, 13, 33, 39, 143, 149, 429, 447, 1639, 1937, 3407, 4917, 5811, 10221, 21307, 37477, 44291, 63921, 112431, 132873, 487201, 507643, 1461603, 1522929, 5584073, 6599359, 16752219, 19798077, 72592949, 217778847]

約数ペア:

[(1, 217778847), (3, 72592949), (11, 19798077), (13, 16752219), (33, 6599359), (39, 5584073), (143, 1522929), (149, 1461603), (429, 507643), (447, 487201), (1639, 132873), (1937, 112431), (3407, 63921), (4917, 44291), (5811, 37477), (10221, 21307)]