28937727

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{397}}^1$

素因数の和:512

約数の個数: 48

約数和(自身を含む): 52153920

約数和(自身を除く): 23216193

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 89, 91, 117, 267, 273, 397, 623, 801, 819, 1157, 1191, 1869, 2779, 3471, 3573, 5161, 5607, 8099, 8337, 10413, 15483, 24297, 25011, 35333, 36127, 46449, 72891, 105999, 108381, 247331, 317997, 325143, 459329, 741993, 1377987, 2225979, 3215303, 4133961, 9645909, 28937727]

約数ペア:

[(1, 28937727), (3, 9645909), (7, 4133961), (9, 3215303), (13, 2225979), (21, 1377987), (39, 741993), (63, 459329), (89, 325143), (91, 317997), (117, 247331), (267, 108381), (273, 105999), (397, 72891), (623, 46449), (801, 36127), (819, 35333), (1157, 25011), (1191, 24297), (1869, 15483), (2779, 10413), (3471, 8337), (3573, 8099), (5161, 5607)]