21571240

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{23447}}^1$

素因数の和:23481

約数の個数: 32

約数和(自身を含む): 50647680

約数和(自身を除く): 29076440

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 23447, 46894, 93788, 117235, 187576, 234470, 468940, 539281, 937880, 1078562, 2157124, 2696405, 4314248, 5392810, 10785620, 21571240]

約数ペア:

[(1, 21571240), (2, 10785620), (4, 5392810), (5, 4314248), (8, 2696405), (10, 2157124), (20, 1078562), (23, 937880), (40, 539281), (46, 468940), (92, 234470), (115, 187576), (184, 117235), (230, 93788), (460, 46894), (920, 23447)]