21986244

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{2029}}^1$

素因数の和:2089

約数の個数: 72

約数和(自身を含む): 65024960

約数和(自身を除く): 43038716

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 43, 63, 84, 86, 126, 129, 172, 252, 258, 301, 387, 516, 602, 774, 903, 1204, 1548, 1806, 2029, 2709, 3612, 4058, 5418, 6087, 8116, 10836, 12174, 14203, 18261, 24348, 28406, 36522, 42609, 56812, 73044, 85218, 87247, 127827, 170436, 174494, 255654, 261741, 348988, 511308, 523482, 610729, 785223, 1046964, 1221458, 1570446, 1832187, 2442916, 3140892, 3664374, 5496561, 7328748, 10993122, 21986244]

約数ペア:

[(1, 21986244), (2, 10993122), (3, 7328748), (4, 5496561), (6, 3664374), (7, 3140892), (9, 2442916), (12, 1832187), (14, 1570446), (18, 1221458), (21, 1046964), (28, 785223), (36, 610729), (42, 523482), (43, 511308), (63, 348988), (84, 261741), (86, 255654), (126, 174494), (129, 170436), (172, 127827), (252, 87247), (258, 85218), (301, 73044), (387, 56812), (516, 42609), (602, 36522), (774, 28406), (903, 24348), (1204, 18261), (1548, 14203), (1806, 12174), (2029, 10836), (2709, 8116), (3612, 6087), (4058, 5418)]