21855652

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{619}}^1$

素因数の和:740

約数の個数: 48

約数和(自身を含む): 47635840

約数和(自身を除く): 25780188

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 97, 182, 194, 364, 388, 619, 679, 1238, 1261, 1358, 2476, 2522, 2716, 4333, 5044, 8047, 8666, 8827, 16094, 17332, 17654, 32188, 35308, 56329, 60043, 112658, 120086, 225316, 240172, 420301, 780559, 840602, 1561118, 1681204, 3122236, 5463913, 10927826, 21855652]

約数ペア:

[(1, 21855652), (2, 10927826), (4, 5463913), (7, 3122236), (13, 1681204), (14, 1561118), (26, 840602), (28, 780559), (52, 420301), (91, 240172), (97, 225316), (182, 120086), (194, 112658), (364, 60043), (388, 56329), (619, 35308), (679, 32188), (1238, 17654), (1261, 17332), (1358, 16094), (2476, 8827), (2522, 8666), (2716, 8047), (4333, 5044)]