21430641

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{233}}^1$

素因数の和:333

約数の個数: 32

約数和(自身を含む): 31629312

約数和(自身を除く): 10198671

約数列:

[1, 3, 23, 31, 43, 69, 93, 129, 233, 699, 713, 989, 1333, 2139, 2967, 3999, 5359, 7223, 10019, 16077, 21669, 30057, 30659, 91977, 166129, 230437, 310589, 498387, 691311, 931767, 7143547, 21430641]

約数ペア:

[(1, 21430641), (3, 7143547), (23, 931767), (31, 691311), (43, 498387), (69, 310589), (93, 230437), (129, 166129), (233, 91977), (699, 30659), (713, 30057), (989, 21669), (1333, 16077), (2139, 10019), (2967, 7223), (3999, 5359)]