19750588

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1$

素因数の和:155

約数の個数: 72

約数和(自身を含む): 42438704

約数和(自身を除く): 22688116

約数列:

[1, 2, 4, 11, 13, 22, 26, 43, 44, 52, 73, 86, 121, 143, 146, 172, 242, 286, 292, 473, 484, 559, 572, 803, 946, 949, 1118, 1573, 1606, 1892, 1898, 2236, 3139, 3146, 3212, 3796, 5203, 6149, 6278, 6292, 8833, 10406, 10439, 12298, 12556, 17666, 20812, 20878, 24596, 34529, 35332, 40807, 41756, 67639, 69058, 81614, 114829, 135278, 138116, 163228, 229658, 270556, 379819, 448877, 459316, 759638, 897754, 1519276, 1795508, 4937647, 9875294, 19750588]

約数ペア:

[(1, 19750588), (2, 9875294), (4, 4937647), (11, 1795508), (13, 1519276), (22, 897754), (26, 759638), (43, 459316), (44, 448877), (52, 379819), (73, 270556), (86, 229658), (121, 163228), (143, 138116), (146, 135278), (172, 114829), (242, 81614), (286, 69058), (292, 67639), (473, 41756), (484, 40807), (559, 35332), (572, 34529), (803, 24596), (946, 20878), (949, 20812), (1118, 17666), (1573, 12556), (1606, 12298), (1892, 10439), (1898, 10406), (2236, 8833), (3139, 6292), (3146, 6278), (3212, 6149), (3796, 5203)]