72151821

素因数分解:

$3^2\times 7^1\times {\mathrm{313}}^1\times {\mathrm{3659}}^1$

素因数の和:3985

約数の個数: 24

約数和(自身を含む): 119520960

約数和(自身を除く): 47369139

約数列:

[1, 3, 7, 9, 21, 63, 313, 939, 2191, 2817, 3659, 6573, 10977, 19719, 25613, 32931, 76839, 230517, 1145267, 3435801, 8016869, 10307403, 24050607, 72151821]

約数ペア:

[(1, 72151821), (3, 24050607), (7, 10307403), (9, 8016869), (21, 3435801), (63, 1145267), (313, 230517), (939, 76839), (2191, 32931), (2817, 25613), (3659, 19719), (6573, 10977)]