21494985

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{379}}^1$

素因数の和:605

約数の個数: 32

約数和(自身を含む): 36480000

約数和(自身を除く): 14985015

約数列:

[1, 3, 5, 15, 19, 57, 95, 199, 285, 379, 597, 995, 1137, 1895, 2985, 3781, 5685, 7201, 11343, 18905, 21603, 36005, 56715, 75421, 108015, 226263, 377105, 1131315, 1432999, 4298997, 7164995, 21494985]

約数ペア:

[(1, 21494985), (3, 7164995), (5, 4298997), (15, 1432999), (19, 1131315), (57, 377105), (95, 226263), (199, 108015), (285, 75421), (379, 56715), (597, 36005), (995, 21603), (1137, 18905), (1895, 11343), (2985, 7201), (3781, 5685)]