16820414

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{509}}^1$

素因数の和:596

約数の個数: 32

約数和(自身を含む): 28788480

約数和(自身を除く): 11968066

約数列:

[1, 2, 13, 26, 31, 41, 62, 82, 403, 509, 533, 806, 1018, 1066, 1271, 2542, 6617, 13234, 15779, 16523, 20869, 31558, 33046, 41738, 205127, 271297, 410254, 542594, 646939, 1293878, 8410207, 16820414]

約数ペア:

[(1, 16820414), (2, 8410207), (13, 1293878), (26, 646939), (31, 542594), (41, 410254), (62, 271297), (82, 205127), (403, 41738), (509, 33046), (533, 31558), (806, 20869), (1018, 16523), (1066, 15779), (1271, 13234), (2542, 6617)]