20395892

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{787}}^1$

素因数の和:852

約数の個数: 48

約数和(自身を含む): 42362880

約数和(自身を除く): 21966988

約数列:

[1, 2, 4, 11, 19, 22, 31, 38, 44, 62, 76, 124, 209, 341, 418, 589, 682, 787, 836, 1178, 1364, 1574, 2356, 3148, 6479, 8657, 12958, 14953, 17314, 24397, 25916, 29906, 34628, 48794, 59812, 97588, 164483, 268367, 328966, 463543, 536734, 657932, 927086, 1073468, 1854172, 5098973, 10197946, 20395892]

約数ペア:

[(1, 20395892), (2, 10197946), (4, 5098973), (11, 1854172), (19, 1073468), (22, 927086), (31, 657932), (38, 536734), (44, 463543), (62, 328966), (76, 268367), (124, 164483), (209, 97588), (341, 59812), (418, 48794), (589, 34628), (682, 29906), (787, 25916), (836, 24397), (1178, 17314), (1364, 14953), (1574, 12958), (2356, 8657), (3148, 6479)]