21820932

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{131}}^1\times {\mathrm{661}}^1$

素因数の和:809

約数の個数: 72

約数和(自身を含む): 63615552

約数和(自身を除く): 41794620

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 131, 252, 262, 393, 524, 661, 786, 917, 1179, 1322, 1572, 1834, 1983, 2358, 2644, 2751, 3668, 3966, 4627, 4716, 5502, 5949, 7932, 8253, 9254, 11004, 11898, 13881, 16506, 18508, 23796, 27762, 33012, 41643, 55524, 83286, 86591, 166572, 173182, 259773, 346364, 519546, 606137, 779319, 1039092, 1212274, 1558638, 1818411, 2424548, 3117276, 3636822, 5455233, 7273644, 10910466, 21820932]

約数ペア:

[(1, 21820932), (2, 10910466), (3, 7273644), (4, 5455233), (6, 3636822), (7, 3117276), (9, 2424548), (12, 1818411), (14, 1558638), (18, 1212274), (21, 1039092), (28, 779319), (36, 606137), (42, 519546), (63, 346364), (84, 259773), (126, 173182), (131, 166572), (252, 86591), (262, 83286), (393, 55524), (524, 41643), (661, 33012), (786, 27762), (917, 23796), (1179, 18508), (1322, 16506), (1572, 13881), (1834, 11898), (1983, 11004), (2358, 9254), (2644, 8253), (2751, 7932), (3668, 5949), (3966, 5502), (4627, 4716)]