19997642324

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{439}}^1\times {\mathrm{659}}^1\times {\mathrm{1571}}^1$

素因数の和:2684

約数の個数: 48

約数和(自身を含む): 38346739200

約数和(自身を除く): 18349096876

約数列:

[1, 2, 4, 11, 22, 44, 439, 659, 878, 1318, 1571, 1756, 2636, 3142, 4829, 6284, 7249, 9658, 14498, 17281, 19316, 28996, 34562, 69124, 289301, 578602, 689669, 1035289, 1157204, 1379338, 2070578, 2758676, 3182311, 4141156, 6364622, 7586359, 11388179, 12729244, 15172718, 22776358, 30345436, 45552716, 454491871, 908983742, 1817967484, 4999410581, 9998821162, 19997642324]

約数ペア:

[(1, 19997642324), (2, 9998821162), (4, 4999410581), (11, 1817967484), (22, 908983742), (44, 454491871), (439, 45552716), (659, 30345436), (878, 22776358), (1318, 15172718), (1571, 12729244), (1756, 11388179), (2636, 7586359), (3142, 6364622), (4829, 4141156), (6284, 3182311), (7249, 2758676), (9658, 2070578), (14498, 1379338), (17281, 1157204), (19316, 1035289), (28996, 689669), (34562, 578602), (69124, 289301)]