28771119

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{307}}^1$

素因数の和:421

約数の個数: 40

約数和(自身を含む): 46957680

約数和(自身を除く): 18186561

約数列:

[1, 3, 9, 13, 27, 39, 81, 89, 117, 267, 307, 351, 801, 921, 1053, 1157, 2403, 2763, 3471, 3991, 7209, 8289, 10413, 11973, 24867, 27323, 31239, 35919, 81969, 93717, 107757, 245907, 323271, 355199, 737721, 1065597, 2213163, 3196791, 9590373, 28771119]

約数ペア:

[(1, 28771119), (3, 9590373), (9, 3196791), (13, 2213163), (27, 1065597), (39, 737721), (81, 355199), (89, 323271), (117, 245907), (267, 107757), (307, 93717), (351, 81969), (801, 35919), (921, 31239), (1053, 27323), (1157, 24867), (2403, 11973), (2763, 10413), (3471, 8289), (3991, 7209)]