21171436

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37013}}^1$

素因数の和:37041

約数の個数: 24

約数和(自身を含む): 43528464

約数和(自身を除く): 22357028

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 143, 286, 572, 37013, 74026, 148052, 407143, 481169, 814286, 962338, 1628572, 1924676, 5292859, 10585718, 21171436]

約数ペア:

[(1, 21171436), (2, 10585718), (4, 5292859), (11, 1924676), (13, 1628572), (22, 962338), (26, 814286), (44, 481169), (52, 407143), (143, 148052), (286, 74026), (572, 37013)]