20598825

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{571}}^1$

素因数の和:634

約数の個数: 48

約数和(自身を含む): 37733696

約数和(自身を除く): 17134871

約数列:

[1, 3, 5, 13, 15, 25, 37, 39, 65, 75, 111, 185, 195, 325, 481, 555, 571, 925, 975, 1443, 1713, 2405, 2775, 2855, 7215, 7423, 8565, 12025, 14275, 21127, 22269, 36075, 37115, 42825, 63381, 105635, 111345, 185575, 274651, 316905, 528175, 556725, 823953, 1373255, 1584525, 4119765, 6866275, 20598825]

約数ペア:

[(1, 20598825), (3, 6866275), (5, 4119765), (13, 1584525), (15, 1373255), (25, 823953), (37, 556725), (39, 528175), (65, 316905), (75, 274651), (111, 185575), (185, 111345), (195, 105635), (325, 63381), (481, 42825), (555, 37115), (571, 36075), (925, 22269), (975, 21127), (1443, 14275), (1713, 12025), (2405, 8565), (2775, 7423), (2855, 7215)]