21906794

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{197}}^1$

素因数の和:279

約数の個数: 48

約数和(自身を含む): 41741568

約数和(自身を除く): 19834774

約数列:

[1, 2, 7, 13, 14, 26, 47, 91, 94, 169, 182, 197, 329, 338, 394, 611, 658, 1183, 1222, 1379, 2366, 2561, 2758, 4277, 5122, 7943, 8554, 9259, 15886, 17927, 18518, 33293, 35854, 55601, 64813, 66586, 111202, 120367, 129626, 233051, 240734, 466102, 842569, 1564771, 1685138, 3129542, 10953397, 21906794]

約数ペア:

[(1, 21906794), (2, 10953397), (7, 3129542), (13, 1685138), (14, 1564771), (26, 842569), (47, 466102), (91, 240734), (94, 233051), (169, 129626), (182, 120367), (197, 111202), (329, 66586), (338, 64813), (394, 55601), (611, 35854), (658, 33293), (1183, 18518), (1222, 17927), (1379, 15886), (2366, 9259), (2561, 8554), (2758, 7943), (4277, 5122)]