21561176

素因数分解:

$2^3\times 7^2\times {\mathrm{13}}^1\times {\mathrm{4231}}^1$

素因数の和:4264

約数の個数: 48

約数和(自身を含む): 50657040

約数和(自身を除く): 29095864

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 49, 52, 56, 91, 98, 104, 182, 196, 364, 392, 637, 728, 1274, 2548, 4231, 5096, 8462, 16924, 29617, 33848, 55003, 59234, 110006, 118468, 207319, 220012, 236936, 385021, 414638, 440024, 770042, 829276, 1540084, 1658552, 2695147, 3080168, 5390294, 10780588, 21561176]

約数ペア:

[(1, 21561176), (2, 10780588), (4, 5390294), (7, 3080168), (8, 2695147), (13, 1658552), (14, 1540084), (26, 829276), (28, 770042), (49, 440024), (52, 414638), (56, 385021), (91, 236936), (98, 220012), (104, 207319), (182, 118468), (196, 110006), (364, 59234), (392, 55003), (637, 33848), (728, 29617), (1274, 16924), (2548, 8462), (4231, 5096)]