21532212

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{331}}^1$

素因数の和:493

約数の個数: 72

約数和(自身を含む): 59215520

約数和(自身を除く): 37683308

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 139, 156, 234, 278, 331, 417, 468, 556, 662, 834, 993, 1251, 1324, 1668, 1807, 1986, 2502, 2979, 3614, 3972, 4303, 5004, 5421, 5958, 7228, 8606, 10842, 11916, 12909, 16263, 17212, 21684, 25818, 32526, 38727, 46009, 51636, 65052, 77454, 92018, 138027, 154908, 184036, 276054, 414081, 552108, 598117, 828162, 1196234, 1656324, 1794351, 2392468, 3588702, 5383053, 7177404, 10766106, 21532212]

約数ペア:

[(1, 21532212), (2, 10766106), (3, 7177404), (4, 5383053), (6, 3588702), (9, 2392468), (12, 1794351), (13, 1656324), (18, 1196234), (26, 828162), (36, 598117), (39, 552108), (52, 414081), (78, 276054), (117, 184036), (139, 154908), (156, 138027), (234, 92018), (278, 77454), (331, 65052), (417, 51636), (468, 46009), (556, 38727), (662, 32526), (834, 25818), (993, 21684), (1251, 17212), (1324, 16263), (1668, 12909), (1807, 11916), (1986, 10842), (2502, 8606), (2979, 7228), (3614, 5958), (3972, 5421), (4303, 5004)]