21173061651

素因数分解:

$3^1\times 7^2\times {\mathrm{113}}^1\times {\mathrm{1129}}^2$

素因数の和:2388

約数の個数: 36

約数和(自身を含む): 33159839832

約数和(自身を除く): 11986778181

約数列:

[1, 3, 7, 21, 49, 113, 147, 339, 791, 1129, 2373, 3387, 5537, 7903, 16611, 23709, 55321, 127577, 165963, 382731, 893039, 1274641, 2679117, 3823923, 6251273, 8922487, 18753819, 26767461, 62457409, 144034433, 187372227, 432103299, 1008241031, 3024723093, 7057687217, 21173061651]

約数ペア:

[(1, 21173061651), (3, 7057687217), (7, 3024723093), (21, 1008241031), (49, 432103299), (113, 187372227), (147, 144034433), (339, 62457409), (791, 26767461), (1129, 18753819), (2373, 8922487), (3387, 6251273), (5537, 3823923), (7903, 2679117), (16611, 1274641), (23709, 893039), (55321, 382731), (127577, 165963)]