19815822

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{4457}}^1$

素因数の和:4497

約数の個数: 48

約数和(自身を含む): 48681360

約数和(自身を除く): 28865538

約数列:

[1, 2, 3, 6, 9, 13, 18, 19, 26, 38, 39, 57, 78, 114, 117, 171, 234, 247, 342, 494, 741, 1482, 2223, 4446, 4457, 8914, 13371, 26742, 40113, 57941, 80226, 84683, 115882, 169366, 173823, 254049, 347646, 508098, 521469, 762147, 1042938, 1100879, 1524294, 2201758, 3302637, 6605274, 9907911, 19815822]

約数ペア:

[(1, 19815822), (2, 9907911), (3, 6605274), (6, 3302637), (9, 2201758), (13, 1524294), (18, 1100879), (19, 1042938), (26, 762147), (38, 521469), (39, 508098), (57, 347646), (78, 254049), (114, 173823), (117, 169366), (171, 115882), (234, 84683), (247, 80226), (342, 57941), (494, 40113), (741, 26742), (1482, 13371), (2223, 8914), (4446, 4457)]