64721601

素因数分解:

$3^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1$

素因数の和:223

約数の個数: 72

約数和(自身を含む): 117641160

約数和(自身を除く): 52919559

約数列:

[1, 3, 7, 9, 17, 21, 49, 51, 63, 89, 97, 119, 147, 153, 267, 291, 357, 441, 623, 679, 801, 833, 873, 1071, 1513, 1649, 1869, 2037, 2499, 4361, 4539, 4753, 4947, 5607, 6111, 7497, 8633, 10591, 11543, 13083, 13617, 14259, 14841, 25899, 31773, 34629, 39249, 42777, 60431, 74137, 77697, 80801, 95319, 103887, 146761, 181293, 222411, 242403, 423017, 440283, 543879, 667233, 727209, 1027327, 1269051, 1320849, 3081981, 3807153, 7191289, 9245943, 21573867, 64721601]

約数ペア:

[(1, 64721601), (3, 21573867), (7, 9245943), (9, 7191289), (17, 3807153), (21, 3081981), (49, 1320849), (51, 1269051), (63, 1027327), (89, 727209), (97, 667233), (119, 543879), (147, 440283), (153, 423017), (267, 242403), (291, 222411), (357, 181293), (441, 146761), (623, 103887), (679, 95319), (801, 80801), (833, 77697), (873, 74137), (1071, 60431), (1513, 42777), (1649, 39249), (1869, 34629), (2037, 31773), (2499, 25899), (4361, 14841), (4539, 14259), (4753, 13617), (4947, 13083), (5607, 11543), (6111, 10591), (7497, 8633)]