21763816

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{1093}}^1$

素因数の和:1249

約数の個数: 32

約数和(自身を含む): 43322400

約数和(自身を除く): 21558584

約数列:

[1, 2, 4, 8, 19, 38, 76, 131, 152, 262, 524, 1048, 1093, 2186, 2489, 4372, 4978, 8744, 9956, 19912, 20767, 41534, 83068, 143183, 166136, 286366, 572732, 1145464, 2720477, 5440954, 10881908, 21763816]

約数ペア:

[(1, 21763816), (2, 10881908), (4, 5440954), (8, 2720477), (19, 1145464), (38, 572732), (76, 286366), (131, 166136), (152, 143183), (262, 83068), (524, 41534), (1048, 20767), (1093, 19912), (2186, 9956), (2489, 8744), (4372, 4978)]