19927545

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1$

素因数の和:190

約数の個数: 64

約数和(自身を含む): 37324800

約数和(自身を除く): 17397255

約数列:

[1, 3, 5, 11, 15, 23, 33, 55, 59, 69, 89, 115, 165, 177, 253, 267, 295, 345, 445, 649, 759, 885, 979, 1265, 1335, 1357, 1947, 2047, 2937, 3245, 3795, 4071, 4895, 5251, 6141, 6785, 9735, 10235, 14685, 14927, 15753, 20355, 22517, 26255, 30705, 44781, 57761, 67551, 74635, 78765, 112585, 120773, 173283, 223905, 288805, 337755, 362319, 603865, 866415, 1328503, 1811595, 3985509, 6642515, 19927545]

約数ペア:

[(1, 19927545), (3, 6642515), (5, 3985509), (11, 1811595), (15, 1328503), (23, 866415), (33, 603865), (55, 362319), (59, 337755), (69, 288805), (89, 223905), (115, 173283), (165, 120773), (177, 112585), (253, 78765), (267, 74635), (295, 67551), (345, 57761), (445, 44781), (649, 30705), (759, 26255), (885, 22517), (979, 20355), (1265, 15753), (1335, 14927), (1357, 14685), (1947, 10235), (2047, 9735), (2937, 6785), (3245, 6141), (3795, 5251), (4071, 4895)]