21679623

素因数分解:

$3^3\times 7^1\times {\mathrm{251}}^1\times {\mathrm{457}}^1$

素因数の和:724

約数の個数: 32

約数和(自身を含む): 36933120

約数和(自身を除く): 15253497

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 251, 457, 753, 1371, 1757, 2259, 3199, 4113, 5271, 6777, 9597, 12339, 15813, 28791, 47439, 86373, 114707, 344121, 802949, 1032363, 2408847, 3097089, 7226541, 21679623]

約数ペア:

[(1, 21679623), (3, 7226541), (7, 3097089), (9, 2408847), (21, 1032363), (27, 802949), (63, 344121), (189, 114707), (251, 86373), (457, 47439), (753, 28791), (1371, 15813), (1757, 12339), (2259, 9597), (3199, 6777), (4113, 5271)]