21978096

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{439}}^1$

素因数の和:606

約数の個数: 80

約数和(自身を含む): 65472000

約数和(自身を除く): 43493904

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 149, 168, 298, 336, 439, 447, 596, 878, 894, 1043, 1192, 1317, 1756, 1788, 2086, 2384, 2634, 3073, 3129, 3512, 3576, 4172, 5268, 6146, 6258, 7024, 7152, 8344, 9219, 10536, 12292, 12516, 16688, 18438, 21072, 24584, 25032, 36876, 49168, 50064, 65411, 73752, 130822, 147504, 196233, 261644, 392466, 457877, 523288, 784932, 915754, 1046576, 1373631, 1569864, 1831508, 2747262, 3139728, 3663016, 5494524, 7326032, 10989048, 21978096]

約数ペア:

[(1, 21978096), (2, 10989048), (3, 7326032), (4, 5494524), (6, 3663016), (7, 3139728), (8, 2747262), (12, 1831508), (14, 1569864), (16, 1373631), (21, 1046576), (24, 915754), (28, 784932), (42, 523288), (48, 457877), (56, 392466), (84, 261644), (112, 196233), (149, 147504), (168, 130822), (298, 73752), (336, 65411), (439, 50064), (447, 49168), (596, 36876), (878, 25032), (894, 24584), (1043, 21072), (1192, 18438), (1317, 16688), (1756, 12516), (1788, 12292), (2086, 10536), (2384, 9219), (2634, 8344), (3073, 7152), (3129, 7024), (3512, 6258), (3576, 6146), (4172, 5268)]