28121745

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{113}}^1\times {\mathrm{353}}^1$

素因数の和:521

約数の個数: 32

約数和(自身を含む): 46490112

約数和(自身を除く): 18368367

約数列:

[1, 3, 5, 15, 47, 113, 141, 235, 339, 353, 565, 705, 1059, 1695, 1765, 5295, 5311, 15933, 16591, 26555, 39889, 49773, 79665, 82955, 119667, 199445, 248865, 598335, 1874783, 5624349, 9373915, 28121745]

約数ペア:

[(1, 28121745), (3, 9373915), (5, 5624349), (15, 1874783), (47, 598335), (113, 248865), (141, 199445), (235, 119667), (339, 82955), (353, 79665), (565, 49773), (705, 39889), (1059, 26555), (1695, 16591), (1765, 15933), (5295, 5311)]