21957502

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1$

素因数の和:185

約数の個数: 64

約数和(自身を含む): 42900480

約数和(自身を除く): 20942978

約数列:

[1, 2, 7, 14, 19, 23, 37, 38, 46, 74, 97, 133, 161, 194, 259, 266, 322, 437, 518, 679, 703, 851, 874, 1358, 1406, 1702, 1843, 2231, 3059, 3589, 3686, 4462, 4921, 5957, 6118, 7178, 9842, 11914, 12901, 15617, 16169, 25123, 25802, 31234, 32338, 42389, 50246, 68191, 82547, 84778, 113183, 136382, 165094, 226366, 296723, 477337, 577829, 593446, 954674, 1155658, 1568393, 3136786, 10978751, 21957502]

約数ペア:

[(1, 21957502), (2, 10978751), (7, 3136786), (14, 1568393), (19, 1155658), (23, 954674), (37, 593446), (38, 577829), (46, 477337), (74, 296723), (97, 226366), (133, 165094), (161, 136382), (194, 113183), (259, 84778), (266, 82547), (322, 68191), (437, 50246), (518, 42389), (679, 32338), (703, 31234), (851, 25802), (874, 25123), (1358, 16169), (1406, 15617), (1702, 12901), (1843, 11914), (2231, 9842), (3059, 7178), (3589, 6118), (3686, 5957), (4462, 4921)]