21142429

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1$

素因数の和:277

約数の個数: 32

約数和(自身を含む): 27885312

約数和(自身を除く): 6742883

約数列:

[1, 7, 11, 37, 41, 77, 181, 259, 287, 407, 451, 1267, 1517, 1991, 2849, 3157, 6697, 7421, 10619, 13937, 16687, 46879, 51947, 73667, 81631, 116809, 274577, 515669, 571417, 1922039, 3020347, 21142429]

約数ペア:

[(1, 21142429), (7, 3020347), (11, 1922039), (37, 571417), (41, 515669), (77, 274577), (181, 116809), (259, 81631), (287, 73667), (407, 51947), (451, 46879), (1267, 16687), (1517, 13937), (1991, 10619), (2849, 7421), (3157, 6697)]