20403780831

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{241}}^1\times {\mathrm{449}}^1$

素因数の和:817

約数の個数: 96

約数和(自身を含む): 35199964800

約数和(自身を除く): 14796183969

約数列:

[1, 3, 7, 9, 21, 41, 63, 73, 123, 219, 241, 287, 369, 449, 511, 657, 723, 861, 1347, 1533, 1687, 2169, 2583, 2993, 3143, 4041, 4599, 5061, 8979, 9429, 9881, 15183, 17593, 18409, 20951, 26937, 28287, 29643, 32777, 52779, 55227, 62853, 69167, 88929, 98331, 108209, 123151, 128863, 158337, 165681, 188559, 207501, 229439, 294993, 324627, 369453, 386589, 622503, 688317, 721313, 757463, 973881, 1108359, 1159767, 1343857, 2064951, 2163939, 2272389, 4031571, 4436569, 5049191, 6491817, 6817167, 7899257, 9406999, 12094713, 13309707, 15147573, 23697771, 28220997, 31055983, 39929121, 45442719, 55294799, 71093313, 84662991, 93167949, 165884397, 279503847, 323869537, 497653191, 971608611, 2267086759, 2914825833, 6801260277, 20403780831]

約数ペア:

[(1, 20403780831), (3, 6801260277), (7, 2914825833), (9, 2267086759), (21, 971608611), (41, 497653191), (63, 323869537), (73, 279503847), (123, 165884397), (219, 93167949), (241, 84662991), (287, 71093313), (369, 55294799), (449, 45442719), (511, 39929121), (657, 31055983), (723, 28220997), (861, 23697771), (1347, 15147573), (1533, 13309707), (1687, 12094713), (2169, 9406999), (2583, 7899257), (2993, 6817167), (3143, 6491817), (4041, 5049191), (4599, 4436569), (5061, 4031571), (8979, 2272389), (9429, 2163939), (9881, 2064951), (15183, 1343857), (17593, 1159767), (18409, 1108359), (20951, 973881), (26937, 757463), (28287, 721313), (29643, 688317), (32777, 622503), (52779, 386589), (55227, 369453), (62853, 324627), (69167, 294993), (88929, 229439), (98331, 207501), (108209, 188559), (123151, 165681), (128863, 158337)]