20565380997

素因数分解:

$3^2\times 7^3\times {\mathrm{31}}^1\times {\mathrm{311}}^1\times {\mathrm{691}}^1$

素因数の和:1060

約数の個数: 96

約数和(自身を含む): 35926425600

約数和(自身を除く): 15361044603

約数列:

[1, 3, 7, 9, 21, 31, 49, 63, 93, 147, 217, 279, 311, 343, 441, 651, 691, 933, 1029, 1519, 1953, 2073, 2177, 2799, 3087, 4557, 4837, 6219, 6531, 9641, 10633, 13671, 14511, 15239, 19593, 21421, 28923, 31899, 33859, 43533, 45717, 64263, 67487, 86769, 95697, 101577, 106673, 137151, 149947, 192789, 202461, 214901, 237013, 304731, 320019, 449841, 472409, 607383, 644703, 711039, 960057, 1049629, 1349523, 1417227, 1504307, 1934109, 2133117, 3148887, 3306863, 4251681, 4512921, 6661931, 7347403, 9446661, 9920589, 10530149, 13538763, 19985793, 22042209, 29761767, 31590447, 46633517, 59957379, 66126627, 73711043, 94771341, 139900551, 221133129, 326434619, 419701653, 663399387, 979303857, 2285042333, 2937911571, 6855126999, 20565380997]

約数ペア:

[(1, 20565380997), (3, 6855126999), (7, 2937911571), (9, 2285042333), (21, 979303857), (31, 663399387), (49, 419701653), (63, 326434619), (93, 221133129), (147, 139900551), (217, 94771341), (279, 73711043), (311, 66126627), (343, 59957379), (441, 46633517), (651, 31590447), (691, 29761767), (933, 22042209), (1029, 19985793), (1519, 13538763), (1953, 10530149), (2073, 9920589), (2177, 9446661), (2799, 7347403), (3087, 6661931), (4557, 4512921), (4837, 4251681), (6219, 3306863), (6531, 3148887), (9641, 2133117), (10633, 1934109), (13671, 1504307), (14511, 1417227), (15239, 1349523), (19593, 1049629), (21421, 960057), (28923, 711039), (31899, 644703), (33859, 607383), (43533, 472409), (45717, 449841), (64263, 320019), (67487, 304731), (86769, 237013), (95697, 214901), (101577, 202461), (106673, 192789), (137151, 149947)]