209215593

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1\times {\mathrm{233}}^1$

素因数の和:406

約数の個数: 48

約数和(自身を含む): 328536000

約数和(自身を除く): 119320407

約数列:

[1, 3, 9, 19, 57, 59, 89, 171, 177, 233, 267, 531, 699, 801, 1121, 1691, 2097, 3363, 4427, 5073, 5251, 10089, 13281, 13747, 15219, 15753, 20737, 39843, 41241, 47259, 62211, 99769, 123723, 186633, 261193, 299307, 394003, 783579, 897921, 1182009, 1223483, 2350737, 3546027, 3670449, 11011347, 23246177, 69738531, 209215593]

約数ペア:

[(1, 209215593), (3, 69738531), (9, 23246177), (19, 11011347), (57, 3670449), (59, 3546027), (89, 2350737), (171, 1223483), (177, 1182009), (233, 897921), (267, 783579), (531, 394003), (699, 299307), (801, 261193), (1121, 186633), (1691, 123723), (2097, 99769), (3363, 62211), (4427, 47259), (5073, 41241), (5251, 39843), (10089, 20737), (13281, 15753), (13747, 15219)]