21074976

素因数分解:

$2^5\times 3^2\times {\mathrm{13}}^2\times {\mathrm{433}}^1$

素因数の和:475

約数の個数: 108

約数和(自身を含む): 65046618

約数和(自身を除く): 43971642

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 32, 36, 39, 48, 52, 72, 78, 96, 104, 117, 144, 156, 169, 208, 234, 288, 312, 338, 416, 433, 468, 507, 624, 676, 866, 936, 1014, 1248, 1299, 1352, 1521, 1732, 1872, 2028, 2598, 2704, 3042, 3464, 3744, 3897, 4056, 5196, 5408, 5629, 6084, 6928, 7794, 8112, 10392, 11258, 12168, 13856, 15588, 16224, 16887, 20784, 22516, 24336, 31176, 33774, 41568, 45032, 48672, 50661, 62352, 67548, 73177, 90064, 101322, 124704, 135096, 146354, 180128, 202644, 219531, 270192, 292708, 405288, 439062, 540384, 585416, 658593, 810576, 878124, 1170832, 1317186, 1621152, 1756248, 2341664, 2634372, 3512496, 5268744, 7024992, 10537488, 21074976]

約数ペア:

[(1, 21074976), (2, 10537488), (3, 7024992), (4, 5268744), (6, 3512496), (8, 2634372), (9, 2341664), (12, 1756248), (13, 1621152), (16, 1317186), (18, 1170832), (24, 878124), (26, 810576), (32, 658593), (36, 585416), (39, 540384), (48, 439062), (52, 405288), (72, 292708), (78, 270192), (96, 219531), (104, 202644), (117, 180128), (144, 146354), (156, 135096), (169, 124704), (208, 101322), (234, 90064), (288, 73177), (312, 67548), (338, 62352), (416, 50661), (433, 48672), (468, 45032), (507, 41568), (624, 33774), (676, 31176), (866, 24336), (936, 22516), (1014, 20784), (1248, 16887), (1299, 16224), (1352, 15588), (1521, 13856), (1732, 12168), (1872, 11258), (2028, 10392), (2598, 8112), (2704, 7794), (3042, 6928), (3464, 6084), (3744, 5629), (3897, 5408), (4056, 5196)]