19972722

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2543}}^1$

素因数の和:2583

約数の個数: 64

約数和(自身を含む): 52752384

約数和(自身を除く): 32779662

約数列:

[1, 2, 3, 6, 7, 11, 14, 17, 21, 22, 33, 34, 42, 51, 66, 77, 102, 119, 154, 187, 231, 238, 357, 374, 462, 561, 714, 1122, 1309, 2543, 2618, 3927, 5086, 7629, 7854, 15258, 17801, 27973, 35602, 43231, 53403, 55946, 83919, 86462, 106806, 129693, 167838, 195811, 259386, 302617, 391622, 475541, 587433, 605234, 907851, 951082, 1174866, 1426623, 1815702, 2853246, 3328787, 6657574, 9986361, 19972722]

約数ペア:

[(1, 19972722), (2, 9986361), (3, 6657574), (6, 3328787), (7, 2853246), (11, 1815702), (14, 1426623), (17, 1174866), (21, 951082), (22, 907851), (33, 605234), (34, 587433), (42, 475541), (51, 391622), (66, 302617), (77, 259386), (102, 195811), (119, 167838), (154, 129693), (187, 106806), (231, 86462), (238, 83919), (357, 55946), (374, 53403), (462, 43231), (561, 35602), (714, 27973), (1122, 17801), (1309, 15258), (2543, 7854), (2618, 7629), (3927, 5086)]