21305648

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{14633}}^1$

素因数の和:14661

約数の個数: 40

約数和(自身を含む): 50809248

約数和(自身を除く): 29503600

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 14633, 29266, 58532, 102431, 117064, 190229, 204862, 234128, 380458, 409724, 760916, 819448, 1331603, 1521832, 1638896, 2663206, 3043664, 5326412, 10652824, 21305648]

約数ペア:

[(1, 21305648), (2, 10652824), (4, 5326412), (7, 3043664), (8, 2663206), (13, 1638896), (14, 1521832), (16, 1331603), (26, 819448), (28, 760916), (52, 409724), (56, 380458), (91, 234128), (104, 204862), (112, 190229), (182, 117064), (208, 102431), (364, 58532), (728, 29266), (1456, 14633)]