21365235

素因数分解:

$3^3\times 5^1\times {\mathrm{158261}}^1$

素因数の和:158275

約数の個数: 16

約数和(自身を含む): 37982880

約数和(自身を除く): 16617645

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 158261, 474783, 791305, 1424349, 2373915, 4273047, 7121745, 21365235]

約数ペア:

[(1, 21365235), (3, 7121745), (5, 4273047), (9, 2373915), (15, 1424349), (27, 791305), (45, 474783), (135, 158261)]