21284835

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{9923}}^1$

素因数の和:9955

約数の個数: 32

約数和(自身を含む): 40013568

約数和(自身を除く): 18728733

約数列:

[1, 3, 5, 11, 13, 15, 33, 39, 55, 65, 143, 165, 195, 429, 715, 2145, 9923, 29769, 49615, 109153, 128999, 148845, 327459, 386997, 545765, 644995, 1418989, 1637295, 1934985, 4256967, 7094945, 21284835]

約数ペア:

[(1, 21284835), (3, 7094945), (5, 4256967), (11, 1934985), (13, 1637295), (15, 1418989), (33, 644995), (39, 545765), (55, 386997), (65, 327459), (143, 148845), (165, 128999), (195, 109153), (429, 49615), (715, 29769), (2145, 9923)]