21803868

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{251}}^1$

素因数の和:407

約数の個数: 72

約数和(自身を含む): 58705920

約数和(自身を除く): 36902052

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 114, 127, 171, 228, 251, 254, 342, 381, 502, 508, 684, 753, 762, 1004, 1143, 1506, 1524, 2259, 2286, 2413, 3012, 4518, 4572, 4769, 4826, 7239, 9036, 9538, 9652, 14307, 14478, 19076, 21717, 28614, 28956, 31877, 42921, 43434, 57228, 63754, 85842, 86868, 95631, 127508, 171684, 191262, 286893, 382524, 573786, 605663, 1147572, 1211326, 1816989, 2422652, 3633978, 5450967, 7267956, 10901934, 21803868]

約数ペア:

[(1, 21803868), (2, 10901934), (3, 7267956), (4, 5450967), (6, 3633978), (9, 2422652), (12, 1816989), (18, 1211326), (19, 1147572), (36, 605663), (38, 573786), (57, 382524), (76, 286893), (114, 191262), (127, 171684), (171, 127508), (228, 95631), (251, 86868), (254, 85842), (342, 63754), (381, 57228), (502, 43434), (508, 42921), (684, 31877), (753, 28956), (762, 28614), (1004, 21717), (1143, 19076), (1506, 14478), (1524, 14307), (2259, 9652), (2286, 9538), (2413, 9036), (3012, 7239), (4518, 4826), (4572, 4769)]