16721145

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{487}}^1$

素因数の和:614

約数の個数: 48

約数和(自身を含む): 33496320

約数和(自身を除く): 16775175

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 109, 315, 327, 487, 545, 763, 981, 1461, 1635, 2289, 2435, 3409, 3815, 4383, 4905, 6867, 7305, 10227, 11445, 17045, 21915, 30681, 34335, 51135, 53083, 153405, 159249, 265415, 371581, 477747, 796245, 1114743, 1857905, 2388735, 3344229, 5573715, 16721145]

約数ペア:

[(1, 16721145), (3, 5573715), (5, 3344229), (7, 2388735), (9, 1857905), (15, 1114743), (21, 796245), (35, 477747), (45, 371581), (63, 265415), (105, 159249), (109, 153405), (315, 53083), (327, 51135), (487, 34335), (545, 30681), (763, 21915), (981, 17045), (1461, 11445), (1635, 10227), (2289, 7305), (2435, 6867), (3409, 4905), (3815, 4383)]