19717478

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1097}}^1$

素因数の和:1172

約数の個数: 32

約数和(自身を含む): 34784640

約数和(自身を除く): 15067162

約数列:

[1, 2, 11, 19, 22, 38, 43, 86, 209, 418, 473, 817, 946, 1097, 1634, 2194, 8987, 12067, 17974, 20843, 24134, 41686, 47171, 94342, 229273, 458546, 518881, 896249, 1037762, 1792498, 9858739, 19717478]

約数ペア:

[(1, 19717478), (2, 9858739), (11, 1792498), (19, 1037762), (22, 896249), (38, 518881), (43, 458546), (86, 229273), (209, 94342), (418, 47171), (473, 41686), (817, 24134), (946, 20843), (1097, 17974), (1634, 12067), (2194, 8987)]