21332955

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{1483}}^1$

素因数の和:1635

約数の個数: 32

約数和(自身を含む): 39320064

約数和(自身を除く): 17987109

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 137, 411, 685, 959, 1483, 2055, 2877, 4449, 4795, 7415, 10381, 14385, 22245, 31143, 51905, 155715, 203171, 609513, 1015855, 1422197, 3047565, 4266591, 7110985, 21332955]

約数ペア:

[(1, 21332955), (3, 7110985), (5, 4266591), (7, 3047565), (15, 1422197), (21, 1015855), (35, 609513), (105, 203171), (137, 155715), (411, 51905), (685, 31143), (959, 22245), (1483, 14385), (2055, 10381), (2877, 7415), (4449, 4795)]