21645944

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{2503}}^1$

素因数の和:2579

約数の個数: 32

約数和(自身を含む): 43269120

約数和(自身を除く): 21623176

約数列:

[1, 2, 4, 8, 23, 46, 47, 92, 94, 184, 188, 376, 1081, 2162, 2503, 4324, 5006, 8648, 10012, 20024, 57569, 115138, 117641, 230276, 235282, 460552, 470564, 941128, 2705743, 5411486, 10822972, 21645944]

約数ペア:

[(1, 21645944), (2, 10822972), (4, 5411486), (8, 2705743), (23, 941128), (46, 470564), (47, 460552), (92, 235282), (94, 230276), (184, 117641), (188, 115138), (376, 57569), (1081, 20024), (2162, 10012), (2503, 8648), (4324, 5006)]