19942852

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{47}}^2\times {\mathrm{61}}^1$

素因数の和:196

約数の個数: 36

約数和(自身を含む): 37222444

約数和(自身を除く): 17279592

約数列:

[1, 2, 4, 37, 47, 61, 74, 94, 122, 148, 188, 244, 1739, 2209, 2257, 2867, 3478, 4418, 4514, 5734, 6956, 8836, 9028, 11468, 81733, 106079, 134749, 163466, 212158, 269498, 326932, 424316, 538996, 4985713, 9971426, 19942852]

約数ペア:

[(1, 19942852), (2, 9971426), (4, 4985713), (37, 538996), (47, 424316), (61, 326932), (74, 269498), (94, 212158), (122, 163466), (148, 134749), (188, 106079), (244, 81733), (1739, 11468), (2209, 9028), (2257, 8836), (2867, 6956), (3478, 5734), (4418, 4514)]