19964028

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{271}}^1\times {\mathrm{877}}^1$

素因数の和:1162

約数の個数: 48

約数和(自身を含む): 53494784

約数和(自身を除く): 33530756

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 271, 542, 813, 877, 1084, 1626, 1754, 1897, 2631, 3252, 3508, 3794, 5262, 5691, 6139, 7588, 10524, 11382, 12278, 18417, 22764, 24556, 36834, 73668, 237667, 475334, 713001, 950668, 1426002, 1663669, 2852004, 3327338, 4991007, 6654676, 9982014, 19964028]

約数ペア:

[(1, 19964028), (2, 9982014), (3, 6654676), (4, 4991007), (6, 3327338), (7, 2852004), (12, 1663669), (14, 1426002), (21, 950668), (28, 713001), (42, 475334), (84, 237667), (271, 73668), (542, 36834), (813, 24556), (877, 22764), (1084, 18417), (1626, 12278), (1754, 11382), (1897, 10524), (2631, 7588), (3252, 6139), (3508, 5691), (3794, 5262)]