21591064

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{3361}}^1$

素因数の和:3451

約数の個数: 32

約数和(自身を含む): 44781840

約数和(自身を除く): 23190776

約数列:

[1, 2, 4, 8, 11, 22, 44, 73, 88, 146, 292, 584, 803, 1606, 3212, 3361, 6424, 6722, 13444, 26888, 36971, 73942, 147884, 245353, 295768, 490706, 981412, 1962824, 2698883, 5397766, 10795532, 21591064]

約数ペア:

[(1, 21591064), (2, 10795532), (4, 5397766), (8, 2698883), (11, 1962824), (22, 981412), (44, 490706), (73, 295768), (88, 245353), (146, 147884), (292, 73942), (584, 36971), (803, 26888), (1606, 13444), (3212, 6722), (3361, 6424)]