21507612

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{4831}}^1$

素因数の和:4898

約数の個数: 48

約数和(自身を含む): 58447872

約数和(自身を除く): 36940260

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 53, 84, 106, 159, 212, 318, 371, 636, 742, 1113, 1484, 2226, 4452, 4831, 9662, 14493, 19324, 28986, 33817, 57972, 67634, 101451, 135268, 202902, 256043, 405804, 512086, 768129, 1024172, 1536258, 1792301, 3072516, 3584602, 5376903, 7169204, 10753806, 21507612]

約数ペア:

[(1, 21507612), (2, 10753806), (3, 7169204), (4, 5376903), (6, 3584602), (7, 3072516), (12, 1792301), (14, 1536258), (21, 1024172), (28, 768129), (42, 512086), (53, 405804), (84, 256043), (106, 202902), (159, 135268), (212, 101451), (318, 67634), (371, 57972), (636, 33817), (742, 28986), (1113, 19324), (1484, 14493), (2226, 9662), (4452, 4831)]