21961935

素因数分解:

$3^4\times 5^1\times {\mathrm{211}}^1\times {\mathrm{257}}^1$

素因数の和:485

約数の個数: 40

約数和(自身を含む): 39709296

約数和(自身を除く): 17747361

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 211, 257, 405, 633, 771, 1055, 1285, 1899, 2313, 3165, 3855, 5697, 6939, 9495, 11565, 17091, 20817, 28485, 34695, 54227, 85455, 104085, 162681, 271135, 488043, 813405, 1464129, 2440215, 4392387, 7320645, 21961935]

約数ペア:

[(1, 21961935), (3, 7320645), (5, 4392387), (9, 2440215), (15, 1464129), (27, 813405), (45, 488043), (81, 271135), (135, 162681), (211, 104085), (257, 85455), (405, 54227), (633, 34695), (771, 28485), (1055, 20817), (1285, 17091), (1899, 11565), (2313, 9495), (3165, 6939), (3855, 5697)]