18831964

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{37}}^2\times {\mathrm{181}}^1$

素因数の和:278

約数の個数: 36

約数和(自身を含む): 35850360

約数和(自身を除く): 17018396

約数列:

[1, 2, 4, 19, 37, 38, 74, 76, 148, 181, 362, 703, 724, 1369, 1406, 2738, 2812, 3439, 5476, 6697, 6878, 13394, 13756, 26011, 26788, 52022, 104044, 127243, 247789, 254486, 495578, 508972, 991156, 4707991, 9415982, 18831964]

約数ペア:

[(1, 18831964), (2, 9415982), (4, 4707991), (19, 991156), (37, 508972), (38, 495578), (74, 254486), (76, 247789), (148, 127243), (181, 104044), (362, 52022), (703, 26788), (724, 26011), (1369, 13756), (1406, 13394), (2738, 6878), (2812, 6697), (3439, 5476)]