21557055

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{487}}^1$

素因数の和:735

約数の個数: 32

約数和(自身を含む): 37384704

約数和(自身を除く): 15827649

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 227, 487, 681, 1135, 1461, 2435, 2951, 3405, 6331, 7305, 8853, 14755, 18993, 31655, 44265, 94965, 110549, 331647, 552745, 1437137, 1658235, 4311411, 7185685, 21557055]

約数ペア:

[(1, 21557055), (3, 7185685), (5, 4311411), (13, 1658235), (15, 1437137), (39, 552745), (65, 331647), (195, 110549), (227, 94965), (487, 44265), (681, 31655), (1135, 18993), (1461, 14755), (2435, 8853), (2951, 7305), (3405, 6331)]