20986716

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{1109}}^1$

素因数の和:1218

約数の個数: 48

約数和(自身を含む): 52214400

約数和(自身を除く): 31227684

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 57, 76, 83, 114, 166, 228, 249, 332, 498, 996, 1109, 1577, 2218, 3154, 3327, 4436, 4731, 6308, 6654, 9462, 13308, 18924, 21071, 42142, 63213, 84284, 92047, 126426, 184094, 252852, 276141, 368188, 552282, 1104564, 1748893, 3497786, 5246679, 6995572, 10493358, 20986716]

約数ペア:

[(1, 20986716), (2, 10493358), (3, 6995572), (4, 5246679), (6, 3497786), (12, 1748893), (19, 1104564), (38, 552282), (57, 368188), (76, 276141), (83, 252852), (114, 184094), (166, 126426), (228, 92047), (249, 84284), (332, 63213), (498, 42142), (996, 21071), (1109, 18924), (1577, 13308), (2218, 9462), (3154, 6654), (3327, 6308), (4436, 4731)]