201758921

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{293}}^1$

素因数の和:390

約数の個数: 48

約数和(自身を含む): 270273024

約数和(自身を除く): 68514103

約数列:

[1, 7, 13, 23, 47, 49, 91, 161, 293, 299, 329, 611, 637, 1081, 1127, 2051, 2093, 2303, 3809, 4277, 6739, 7567, 13771, 14053, 14357, 14651, 26663, 29939, 47173, 52969, 87607, 96397, 98371, 179023, 186641, 316733, 330211, 613249, 674779, 688597, 1253161, 2217131, 4117529, 4292743, 8772127, 15519917, 28822703, 201758921]

約数ペア:

[(1, 201758921), (7, 28822703), (13, 15519917), (23, 8772127), (47, 4292743), (49, 4117529), (91, 2217131), (161, 1253161), (293, 688597), (299, 674779), (329, 613249), (611, 330211), (637, 316733), (1081, 186641), (1127, 179023), (2051, 98371), (2093, 96397), (2303, 87607), (3809, 52969), (4277, 47173), (6739, 29939), (7567, 26663), (13771, 14651), (14053, 14357)]