20425218

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{149}}^1$

素因数の和:263

約数の個数: 64

約数和(自身を含む): 47001600

約数和(自身を除く): 26576382

約数列:

[1, 2, 3, 6, 11, 22, 31, 33, 62, 66, 67, 93, 134, 149, 186, 201, 298, 341, 402, 447, 682, 737, 894, 1023, 1474, 1639, 2046, 2077, 2211, 3278, 4154, 4422, 4619, 4917, 6231, 9238, 9834, 9983, 12462, 13857, 19966, 22847, 27714, 29949, 45694, 50809, 59898, 68541, 101618, 109813, 137082, 152427, 219626, 304854, 309473, 329439, 618946, 658878, 928419, 1856838, 3404203, 6808406, 10212609, 20425218]

約数ペア:

[(1, 20425218), (2, 10212609), (3, 6808406), (6, 3404203), (11, 1856838), (22, 928419), (31, 658878), (33, 618946), (62, 329439), (66, 309473), (67, 304854), (93, 219626), (134, 152427), (149, 137082), (186, 109813), (201, 101618), (298, 68541), (341, 59898), (402, 50809), (447, 45694), (682, 29949), (737, 27714), (894, 22847), (1023, 19966), (1474, 13857), (1639, 12462), (2046, 9983), (2077, 9834), (2211, 9238), (3278, 6231), (4154, 4917), (4422, 4619)]