21768084

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{241}}^1$

素因数の和:457

約数の個数: 72

約数和(自身を含む): 59811752

約数和(自身を除く): 38043668

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 193, 234, 241, 386, 468, 482, 579, 723, 772, 964, 1158, 1446, 1737, 2169, 2316, 2509, 2892, 3133, 3474, 4338, 5018, 6266, 6948, 7527, 8676, 9399, 10036, 12532, 15054, 18798, 22581, 28197, 30108, 37596, 45162, 46513, 56394, 90324, 93026, 112788, 139539, 186052, 279078, 418617, 558156, 604669, 837234, 1209338, 1674468, 1814007, 2418676, 3628014, 5442021, 7256028, 10884042, 21768084]

約数ペア:

[(1, 21768084), (2, 10884042), (3, 7256028), (4, 5442021), (6, 3628014), (9, 2418676), (12, 1814007), (13, 1674468), (18, 1209338), (26, 837234), (36, 604669), (39, 558156), (52, 418617), (78, 279078), (117, 186052), (156, 139539), (193, 112788), (234, 93026), (241, 90324), (386, 56394), (468, 46513), (482, 45162), (579, 37596), (723, 30108), (772, 28197), (964, 22581), (1158, 18798), (1446, 15054), (1737, 12532), (2169, 10036), (2316, 9399), (2509, 8676), (2892, 7527), (3133, 6948), (3474, 6266), (4338, 5018)]