15420951

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{991}}^1$

素因数の和:1036

約数の個数: 48

約数和(自身を含む): 28887040

約数和(自身を除く): 13466089

約数列:

[1, 3, 7, 9, 13, 19, 21, 39, 57, 63, 91, 117, 133, 171, 247, 273, 399, 741, 819, 991, 1197, 1729, 2223, 2973, 5187, 6937, 8919, 12883, 15561, 18829, 20811, 38649, 56487, 62433, 90181, 115947, 131803, 169461, 244777, 270543, 395409, 734331, 811629, 1186227, 1713439, 2202993, 5140317, 15420951]

約数ペア:

[(1, 15420951), (3, 5140317), (7, 2202993), (9, 1713439), (13, 1186227), (19, 811629), (21, 734331), (39, 395409), (57, 270543), (63, 244777), (91, 169461), (117, 131803), (133, 115947), (171, 90181), (247, 62433), (273, 56487), (399, 38649), (741, 20811), (819, 18829), (991, 15561), (1197, 12883), (1729, 8919), (2223, 6937), (2973, 5187)]