21299355

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{683}}^1$

素因数の和:718

約数の個数: 80

約数和(自身を含む): 47672064

約数和(自身を除く): 26372709

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 27, 33, 35, 45, 55, 63, 77, 81, 99, 105, 135, 165, 189, 231, 297, 315, 385, 405, 495, 567, 683, 693, 891, 945, 1155, 1485, 2049, 2079, 2835, 3415, 3465, 4455, 4781, 6147, 6237, 7513, 10245, 10395, 14343, 18441, 22539, 23905, 30735, 31185, 37565, 43029, 52591, 55323, 67617, 71715, 92205, 112695, 129087, 157773, 202851, 215145, 262955, 276615, 338085, 387261, 473319, 608553, 645435, 788865, 1014255, 1419957, 1936305, 2366595, 3042765, 4259871, 7099785, 21299355]

約数ペア:

[(1, 21299355), (3, 7099785), (5, 4259871), (7, 3042765), (9, 2366595), (11, 1936305), (15, 1419957), (21, 1014255), (27, 788865), (33, 645435), (35, 608553), (45, 473319), (55, 387261), (63, 338085), (77, 276615), (81, 262955), (99, 215145), (105, 202851), (135, 157773), (165, 129087), (189, 112695), (231, 92205), (297, 71715), (315, 67617), (385, 55323), (405, 52591), (495, 43029), (567, 37565), (683, 31185), (693, 30735), (891, 23905), (945, 22539), (1155, 18441), (1485, 14343), (2049, 10395), (2079, 10245), (2835, 7513), (3415, 6237), (3465, 6147), (4455, 4781)]