21523238

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1$

素因数の和:225

約数の個数: 48

約数和(自身を含む): 38814720

約数和(自身を除く): 17291482

約数列:

[1, 2, 11, 19, 22, 31, 38, 62, 121, 151, 209, 242, 302, 341, 418, 589, 682, 1178, 1661, 2299, 2869, 3322, 3751, 4598, 4681, 5738, 6479, 7502, 9362, 12958, 18271, 31559, 36542, 51491, 63118, 71269, 88939, 102982, 142538, 177878, 347149, 566401, 694298, 978329, 1132802, 1956658, 10761619, 21523238]

約数ペア:

[(1, 21523238), (2, 10761619), (11, 1956658), (19, 1132802), (22, 978329), (31, 694298), (38, 566401), (62, 347149), (121, 177878), (151, 142538), (209, 102982), (242, 88939), (302, 71269), (341, 63118), (418, 51491), (589, 36542), (682, 31559), (1178, 18271), (1661, 12958), (2299, 9362), (2869, 7502), (3322, 6479), (3751, 5738), (4598, 4681)]