21342015

素因数分解:

$3^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{1061}}^1$

素因数の和:1224

約数の個数: 32

約数和(自身を含む): 38232000

約数和(自身を除く): 16889985

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 149, 447, 745, 1061, 1341, 2235, 3183, 4023, 5305, 6705, 9549, 15915, 20115, 28647, 47745, 143235, 158089, 474267, 790445, 1422801, 2371335, 4268403, 7114005, 21342015]

約数ペア:

[(1, 21342015), (3, 7114005), (5, 4268403), (9, 2371335), (15, 1422801), (27, 790445), (45, 474267), (135, 158089), (149, 143235), (447, 47745), (745, 28647), (1061, 20115), (1341, 15915), (2235, 9549), (3183, 6705), (4023, 5305)]