19090071

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{163}}^1$

素因数の和:213

約数の個数: 72

約数和(自身を含む): 37454976

約数和(自身を除く): 18364905

約数列:

[1, 3, 7, 9, 11, 13, 21, 33, 39, 63, 77, 91, 99, 117, 143, 163, 169, 231, 273, 429, 489, 507, 693, 819, 1001, 1141, 1183, 1287, 1467, 1521, 1793, 1859, 2119, 3003, 3423, 3549, 5379, 5577, 6357, 9009, 10269, 10647, 12551, 13013, 14833, 16137, 16731, 19071, 23309, 27547, 37653, 39039, 44499, 69927, 82641, 112959, 117117, 133497, 163163, 192829, 209781, 247923, 303017, 489489, 578487, 909051, 1468467, 1735461, 2121119, 2727153, 6363357, 19090071]

約数ペア:

[(1, 19090071), (3, 6363357), (7, 2727153), (9, 2121119), (11, 1735461), (13, 1468467), (21, 909051), (33, 578487), (39, 489489), (63, 303017), (77, 247923), (91, 209781), (99, 192829), (117, 163163), (143, 133497), (163, 117117), (169, 112959), (231, 82641), (273, 69927), (429, 44499), (489, 39039), (507, 37653), (693, 27547), (819, 23309), (1001, 19071), (1141, 16731), (1183, 16137), (1287, 14833), (1467, 13013), (1521, 12551), (1793, 10647), (1859, 10269), (2119, 9009), (3003, 6357), (3423, 5577), (3549, 5379)]