20974668

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{719}}^1$

素因数の和:767

約数の個数: 96

約数和(自身を含む): 60963840

約数和(自身を除く): 39989172

約数列:

[1, 2, 3, 4, 6, 11, 12, 13, 17, 22, 26, 33, 34, 39, 44, 51, 52, 66, 68, 78, 102, 132, 143, 156, 187, 204, 221, 286, 374, 429, 442, 561, 572, 663, 719, 748, 858, 884, 1122, 1326, 1438, 1716, 2157, 2244, 2431, 2652, 2876, 4314, 4862, 7293, 7909, 8628, 9347, 9724, 12223, 14586, 15818, 18694, 23727, 24446, 28041, 29172, 31636, 36669, 37388, 47454, 48892, 56082, 73338, 94908, 102817, 112164, 134453, 146676, 158899, 205634, 268906, 308451, 317798, 403359, 411268, 476697, 537812, 616902, 635596, 806718, 953394, 1233804, 1613436, 1747889, 1906788, 3495778, 5243667, 6991556, 10487334, 20974668]

約数ペア:

[(1, 20974668), (2, 10487334), (3, 6991556), (4, 5243667), (6, 3495778), (11, 1906788), (12, 1747889), (13, 1613436), (17, 1233804), (22, 953394), (26, 806718), (33, 635596), (34, 616902), (39, 537812), (44, 476697), (51, 411268), (52, 403359), (66, 317798), (68, 308451), (78, 268906), (102, 205634), (132, 158899), (143, 146676), (156, 134453), (187, 112164), (204, 102817), (221, 94908), (286, 73338), (374, 56082), (429, 48892), (442, 47454), (561, 37388), (572, 36669), (663, 31636), (719, 29172), (748, 28041), (858, 24446), (884, 23727), (1122, 18694), (1326, 15818), (1438, 14586), (1716, 12223), (2157, 9724), (2244, 9347), (2431, 8628), (2652, 7909), (2876, 7293), (4314, 4862)]