20181427196

素因数分解:

$2^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1487}}^1\times {\mathrm{10313}}^1$

素因数の和:11858

約数の個数: 48

約数和(自身を含む): 41253359616

約数和(自身を除く): 21071932420

約数列:

[1, 2, 4, 7, 14, 28, 47, 94, 188, 329, 658, 1316, 1487, 2974, 5948, 10313, 10409, 20626, 20818, 41252, 41636, 69889, 72191, 139778, 144382, 279556, 288764, 484711, 489223, 969422, 978446, 1938844, 1956892, 3392977, 6785954, 13571908, 15335431, 30670862, 61341724, 107348017, 214696034, 429392068, 720765257, 1441530514, 2883061028, 5045356799, 10090713598, 20181427196]

約数ペア:

[(1, 20181427196), (2, 10090713598), (4, 5045356799), (7, 2883061028), (14, 1441530514), (28, 720765257), (47, 429392068), (94, 214696034), (188, 107348017), (329, 61341724), (658, 30670862), (1316, 15335431), (1487, 13571908), (2974, 6785954), (5948, 3392977), (10313, 1956892), (10409, 1938844), (20626, 978446), (20818, 969422), (41252, 489223), (41636, 484711), (69889, 288764), (72191, 279556), (139778, 144382)]