20587833

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{409}}^1$

素因数の和:486

約数の個数: 48

約数和(自身を含む): 36840960

約数和(自身を除く): 16253127

約数列:

[1, 3, 7, 9, 17, 21, 47, 51, 63, 119, 141, 153, 329, 357, 409, 423, 799, 987, 1071, 1227, 2397, 2863, 2961, 3681, 5593, 6953, 7191, 8589, 16779, 19223, 20859, 25767, 48671, 50337, 57669, 62577, 134561, 146013, 173007, 326791, 403683, 438039, 980373, 1211049, 2287537, 2941119, 6862611, 20587833]

約数ペア:

[(1, 20587833), (3, 6862611), (7, 2941119), (9, 2287537), (17, 1211049), (21, 980373), (47, 438039), (51, 403683), (63, 326791), (119, 173007), (141, 146013), (153, 134561), (329, 62577), (357, 57669), (409, 50337), (423, 48671), (799, 25767), (987, 20859), (1071, 19223), (1227, 16779), (2397, 8589), (2863, 7191), (2961, 6953), (3681, 5593)]