21957960381

素因数分解:

$3^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{227}}^1\times {\mathrm{43049}}^1$

素因数の和:43393

約数の個数: 32

約数和(自身を含む): 33922022400

約数和(自身を除く): 11964062019

約数列:

[1, 3, 7, 21, 107, 227, 321, 681, 749, 1589, 2247, 4767, 24289, 43049, 72867, 129147, 170023, 301343, 510069, 904029, 4606243, 9772123, 13818729, 29316369, 32243701, 68404861, 96731103, 205214583, 1045617161, 3136851483, 7319320127, 21957960381]

約数ペア:

[(1, 21957960381), (3, 7319320127), (7, 3136851483), (21, 1045617161), (107, 205214583), (227, 96731103), (321, 68404861), (681, 32243701), (749, 29316369), (1589, 13818729), (2247, 9772123), (4767, 4606243), (24289, 904029), (43049, 510069), (72867, 301343), (129147, 170023)]