21061284

素因数分解:

$2^2\times 3^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{557}}^1$

素因数の和:724

約数の個数: 48

約数和(自身を含む): 51746688

約数和(自身を除く): 30685404

約数列:

[1, 2, 3, 4, 6, 12, 23, 46, 69, 92, 137, 138, 274, 276, 411, 548, 557, 822, 1114, 1644, 1671, 2228, 3151, 3342, 6302, 6684, 9453, 12604, 12811, 18906, 25622, 37812, 38433, 51244, 76309, 76866, 152618, 153732, 228927, 305236, 457854, 915708, 1755107, 3510214, 5265321, 7020428, 10530642, 21061284]

約数ペア:

[(1, 21061284), (2, 10530642), (3, 7020428), (4, 5265321), (6, 3510214), (12, 1755107), (23, 915708), (46, 457854), (69, 305236), (92, 228927), (137, 153732), (138, 152618), (274, 76866), (276, 76309), (411, 51244), (548, 38433), (557, 37812), (822, 25622), (1114, 18906), (1644, 12811), (1671, 12604), (2228, 9453), (3151, 6684), (3342, 6302)]