201491213

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{97}}^1\times {\mathrm{509}}^1$

素因数の和:677

約数の個数: 32

約数和(自身を含む): 259096320

約数和(自身を除く): 57605107

約数列:

[1, 7, 11, 53, 77, 97, 371, 509, 583, 679, 1067, 3563, 4081, 5141, 5599, 7469, 26977, 35987, 39193, 49373, 56551, 188839, 296747, 345611, 395857, 543103, 2077229, 2616769, 3801721, 18317383, 28784459, 201491213]

約数ペア:

[(1, 201491213), (7, 28784459), (11, 18317383), (53, 3801721), (77, 2616769), (97, 2077229), (371, 543103), (509, 395857), (583, 345611), (679, 296747), (1067, 188839), (3563, 56551), (4081, 49373), (5141, 39193), (5599, 35987), (7469, 26977)]