18644966

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1$

素因数の和:296

約数の個数: 32

約数和(自身を含む): 30780000

約数和(自身を除く): 12135034

約数列:

[1, 2, 19, 37, 38, 74, 89, 149, 178, 298, 703, 1406, 1691, 2831, 3293, 3382, 5513, 5662, 6586, 11026, 13261, 26522, 62567, 104747, 125134, 209494, 251959, 490657, 503918, 981314, 9322483, 18644966]

約数ペア:

[(1, 18644966), (2, 9322483), (19, 981314), (37, 503918), (38, 490657), (74, 251959), (89, 209494), (149, 125134), (178, 104747), (298, 62567), (703, 26522), (1406, 13261), (1691, 11026), (2831, 6586), (3293, 5662), (3382, 5513)]