20615679

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19249}}^1$

素因数の和:19279

約数の個数: 24

約数和(自身を含む): 36036000

約数和(自身を除く): 15420321

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 357, 1071, 19249, 57747, 134743, 173241, 327233, 404229, 981699, 1212687, 2290631, 2945097, 6871893, 20615679]

約数ペア:

[(1, 20615679), (3, 6871893), (7, 2945097), (9, 2290631), (17, 1212687), (21, 981699), (51, 404229), (63, 327233), (119, 173241), (153, 134743), (357, 57747), (1071, 19249)]