21342690

素因数分解:

$2^1\times 3^5\times 5^1\times {\mathrm{8783}}^1$

素因数の和:8805

約数の個数: 48

約数和(自身を含む): 57552768

約数和(自身を除く): 36210078

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 243, 270, 405, 486, 810, 1215, 2430, 8783, 17566, 26349, 43915, 52698, 79047, 87830, 131745, 158094, 237141, 263490, 395235, 474282, 711423, 790470, 1185705, 1422846, 2134269, 2371410, 3557115, 4268538, 7114230, 10671345, 21342690]

約数ペア:

[(1, 21342690), (2, 10671345), (3, 7114230), (5, 4268538), (6, 3557115), (9, 2371410), (10, 2134269), (15, 1422846), (18, 1185705), (27, 790470), (30, 711423), (45, 474282), (54, 395235), (81, 263490), (90, 237141), (135, 158094), (162, 131745), (243, 87830), (270, 79047), (405, 52698), (486, 43915), (810, 26349), (1215, 17566), (2430, 8783)]