201519981

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{907}}^1$

素因数の和:1143

約数の個数: 40

約数和(自身を含む): 326088224

約数和(自身を除く): 124568243

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 211, 351, 633, 907, 1053, 1899, 2721, 2743, 5697, 8163, 8229, 11791, 17091, 24489, 24687, 35373, 73467, 74061, 106119, 191377, 222183, 318357, 574131, 955071, 1722393, 2487901, 5167179, 7463703, 15501537, 22391109, 67173327, 201519981]

約数ペア:

[(1, 201519981), (3, 67173327), (9, 22391109), (13, 15501537), (27, 7463703), (39, 5167179), (81, 2487901), (117, 1722393), (211, 955071), (351, 574131), (633, 318357), (907, 222183), (1053, 191377), (1899, 106119), (2721, 74061), (2743, 73467), (5697, 35373), (8163, 24687), (8229, 24489), (11791, 17091)]