15747985

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{211}}^1$

素因数の和:309

約数の個数: 32

約数和(自身を含む): 21980160

約数和(自身を除く): 6232175

約数列:

[1, 5, 11, 23, 55, 59, 115, 211, 253, 295, 649, 1055, 1265, 1357, 2321, 3245, 4853, 6785, 11605, 12449, 14927, 24265, 53383, 62245, 74635, 136939, 266915, 286327, 684695, 1431635, 3149597, 15747985]

約数ペア:

[(1, 15747985), (5, 3149597), (11, 1431635), (23, 684695), (55, 286327), (59, 266915), (115, 136939), (211, 74635), (253, 62245), (295, 53383), (649, 24265), (1055, 14927), (1265, 12449), (1357, 11605), (2321, 6785), (3245, 4853)]