21196343

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{97}}^1$

素因数の和:207

約数の個数: 32

約数和(自身を含む): 27095040

約数和(自身を除く): 5898697

約数列:

[1, 7, 19, 31, 53, 97, 133, 217, 371, 589, 679, 1007, 1643, 1843, 3007, 4123, 5141, 7049, 11501, 12901, 21049, 31217, 35987, 57133, 97679, 159371, 218519, 399931, 683753, 1115597, 3028049, 21196343]

約数ペア:

[(1, 21196343), (7, 3028049), (19, 1115597), (31, 683753), (53, 399931), (97, 218519), (133, 159371), (217, 97679), (371, 57133), (589, 35987), (679, 31217), (1007, 21049), (1643, 12901), (1843, 11501), (3007, 7049), (4123, 5141)]