81467307

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1$

素因数の和:268

約数の個数: 48

約数和(自身を含む): 128887200

約数和(自身を除く): 47419893

約数列:

[1, 3, 9, 19, 53, 57, 89, 101, 159, 171, 267, 303, 477, 801, 909, 1007, 1691, 1919, 3021, 4717, 5073, 5353, 5757, 8989, 9063, 14151, 15219, 16059, 17271, 26967, 42453, 48177, 80901, 89623, 101707, 170791, 268869, 305121, 476417, 512373, 806607, 915363, 1429251, 1537119, 4287753, 9051923, 27155769, 81467307]

約数ペア:

[(1, 81467307), (3, 27155769), (9, 9051923), (19, 4287753), (53, 1537119), (57, 1429251), (89, 915363), (101, 806607), (159, 512373), (171, 476417), (267, 305121), (303, 268869), (477, 170791), (801, 101707), (909, 89623), (1007, 80901), (1691, 48177), (1919, 42453), (3021, 26967), (4717, 17271), (5073, 16059), (5353, 15219), (5757, 14151), (8989, 9063)]