21710430

素因数分解:

$2^1\times 3^4\times 5^1\times 7^2\times {\mathrm{547}}^1$

素因数の和:580

約数の個数: 120

約数和(自身を含む): 68032008

約数和(自身を除く): 46321578

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 49, 54, 63, 70, 81, 90, 98, 105, 126, 135, 147, 162, 189, 210, 245, 270, 294, 315, 378, 405, 441, 490, 547, 567, 630, 735, 810, 882, 945, 1094, 1134, 1323, 1470, 1641, 1890, 2205, 2646, 2735, 2835, 3282, 3829, 3969, 4410, 4923, 5470, 5670, 6615, 7658, 7938, 8205, 9846, 11487, 13230, 14769, 16410, 19145, 19845, 22974, 24615, 26803, 29538, 34461, 38290, 39690, 44307, 49230, 53606, 57435, 68922, 73845, 80409, 88614, 103383, 114870, 134015, 147690, 160818, 172305, 206766, 221535, 241227, 268030, 310149, 344610, 402045, 443070, 482454, 516915, 620298, 723681, 804090, 1033830, 1206135, 1447362, 1550745, 2171043, 2412270, 3101490, 3618405, 4342086, 7236810, 10855215, 21710430]

約数ペア:

[(1, 21710430), (2, 10855215), (3, 7236810), (5, 4342086), (6, 3618405), (7, 3101490), (9, 2412270), (10, 2171043), (14, 1550745), (15, 1447362), (18, 1206135), (21, 1033830), (27, 804090), (30, 723681), (35, 620298), (42, 516915), (45, 482454), (49, 443070), (54, 402045), (63, 344610), (70, 310149), (81, 268030), (90, 241227), (98, 221535), (105, 206766), (126, 172305), (135, 160818), (147, 147690), (162, 134015), (189, 114870), (210, 103383), (245, 88614), (270, 80409), (294, 73845), (315, 68922), (378, 57435), (405, 53606), (441, 49230), (490, 44307), (547, 39690), (567, 38290), (630, 34461), (735, 29538), (810, 26803), (882, 24615), (945, 22974), (1094, 19845), (1134, 19145), (1323, 16410), (1470, 14769), (1641, 13230), (1890, 11487), (2205, 9846), (2646, 8205), (2735, 7938), (2835, 7658), (3282, 6615), (3829, 5670), (3969, 5470), (4410, 4923)]