18993165

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{211}}^1\times {\mathrm{353}}^1$

素因数の和:589

約数の個数: 32

約数和(自身を含む): 32420736

約数和(自身を除く): 13427571

約数列:

[1, 3, 5, 15, 17, 51, 85, 211, 255, 353, 633, 1055, 1059, 1765, 3165, 3587, 5295, 6001, 10761, 17935, 18003, 30005, 53805, 74483, 90015, 223449, 372415, 1117245, 1266211, 3798633, 6331055, 18993165]

約数ペア:

[(1, 18993165), (3, 6331055), (5, 3798633), (15, 1266211), (17, 1117245), (51, 372415), (85, 223449), (211, 90015), (255, 74483), (353, 53805), (633, 30005), (1055, 18003), (1059, 17935), (1765, 10761), (3165, 6001), (3587, 5295)]