21488440

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{23357}}^1$

素因数の和:23391

約数の個数: 32

約数和(自身を含む): 50453280

約数和(自身を除く): 28964840

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 23357, 46714, 93428, 116785, 186856, 233570, 467140, 537211, 934280, 1074422, 2148844, 2686055, 4297688, 5372110, 10744220, 21488440]

約数ペア:

[(1, 21488440), (2, 10744220), (4, 5372110), (5, 4297688), (8, 2686055), (10, 2148844), (20, 1074422), (23, 934280), (40, 537211), (46, 467140), (92, 233570), (115, 186856), (184, 116785), (230, 93428), (460, 46714), (920, 23357)]