21426219

素因数分解:

$3^2\times {\mathrm{37}}^3\times {\mathrm{47}}^1$

素因数の和:164

約数の個数: 24

約数和(自身を含む): 32485440

約数和(自身を除く): 11059221

約数列:

[1, 3, 9, 37, 47, 111, 141, 333, 423, 1369, 1739, 4107, 5217, 12321, 15651, 50653, 64343, 151959, 193029, 455877, 579087, 2380691, 7142073, 21426219]

約数ペア:

[(1, 21426219), (3, 7142073), (9, 2380691), (37, 579087), (47, 455877), (111, 193029), (141, 151959), (333, 64343), (423, 50653), (1369, 15651), (1739, 12321), (4107, 5217)]