21863955

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{179}}^1\times {\mathrm{479}}^1$

素因数の和:683

約数の個数: 32

約数和(自身を含む): 37324800

約数和(自身を除く): 15460845

約数列:

[1, 3, 5, 15, 17, 51, 85, 179, 255, 479, 537, 895, 1437, 2395, 2685, 3043, 7185, 8143, 9129, 15215, 24429, 40715, 45645, 85741, 122145, 257223, 428705, 1286115, 1457597, 4372791, 7287985, 21863955]

約数ペア:

[(1, 21863955), (3, 7287985), (5, 4372791), (15, 1457597), (17, 1286115), (51, 428705), (85, 257223), (179, 122145), (255, 85741), (479, 45645), (537, 40715), (895, 24429), (1437, 15215), (2395, 9129), (2685, 8143), (3043, 7185)]