21771165

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{1151}}^1$

素因数の和:1269

約数の個数: 32

約数和(自身を含む): 37933056

約数和(自身を除く): 16161891

約数列:

[1, 3, 5, 13, 15, 39, 65, 97, 195, 291, 485, 1151, 1261, 1455, 3453, 3783, 5755, 6305, 14963, 17265, 18915, 44889, 74815, 111647, 224445, 334941, 558235, 1451411, 1674705, 4354233, 7257055, 21771165]

約数ペア:

[(1, 21771165), (3, 7257055), (5, 4354233), (13, 1674705), (15, 1451411), (39, 558235), (65, 334941), (97, 224445), (195, 111647), (291, 74815), (485, 44889), (1151, 18915), (1261, 17265), (1455, 14963), (3453, 6305), (3783, 5755)]