18807215

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{383}}^1$

素因数の和:479

約数の個数: 32

約数和(自身を含む): 27426816

約数和(自身を除く): 8619601

約数列:

[1, 5, 7, 23, 35, 61, 115, 161, 305, 383, 427, 805, 1403, 1915, 2135, 2681, 7015, 8809, 9821, 13405, 23363, 44045, 49105, 61663, 116815, 163541, 308315, 537349, 817705, 2686745, 3761443, 18807215]

約数ペア:

[(1, 18807215), (5, 3761443), (7, 2686745), (23, 817705), (35, 537349), (61, 308315), (115, 163541), (161, 116815), (305, 61663), (383, 49105), (427, 44045), (805, 23363), (1403, 13405), (1915, 9821), (2135, 8809), (2681, 7015)]