21023577

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{281}}^1$

素因数の和:470

約数の個数: 32

約数和(自身を含む): 33298560

約数和(自身を除く): 12274983

約数列:

[1, 3, 9, 17, 27, 51, 153, 163, 281, 459, 489, 843, 1467, 2529, 2771, 4401, 4777, 7587, 8313, 14331, 24939, 42993, 45803, 74817, 128979, 137409, 412227, 778651, 1236681, 2335953, 7007859, 21023577]

約数ペア:

[(1, 21023577), (3, 7007859), (9, 2335953), (17, 1236681), (27, 778651), (51, 412227), (153, 137409), (163, 128979), (281, 74817), (459, 45803), (489, 42993), (843, 24939), (1467, 14331), (2529, 8313), (2771, 7587), (4401, 4777)]