21657312

素因数分解:

$2^5\times 3^2\times {\mathrm{139}}^1\times {\mathrm{541}}^1$

素因数の和:696

約数の個数: 72

約数和(自身を含む): 62145720

約数和(自身を除く): 40488408

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 139, 144, 278, 288, 417, 541, 556, 834, 1082, 1112, 1251, 1623, 1668, 2164, 2224, 2502, 3246, 3336, 4328, 4448, 4869, 5004, 6492, 6672, 8656, 9738, 10008, 12984, 13344, 17312, 19476, 20016, 25968, 38952, 40032, 51936, 75199, 77904, 150398, 155808, 225597, 300796, 451194, 601592, 676791, 902388, 1203184, 1353582, 1804776, 2406368, 2707164, 3609552, 5414328, 7219104, 10828656, 21657312]

約数ペア:

[(1, 21657312), (2, 10828656), (3, 7219104), (4, 5414328), (6, 3609552), (8, 2707164), (9, 2406368), (12, 1804776), (16, 1353582), (18, 1203184), (24, 902388), (32, 676791), (36, 601592), (48, 451194), (72, 300796), (96, 225597), (139, 155808), (144, 150398), (278, 77904), (288, 75199), (417, 51936), (541, 40032), (556, 38952), (834, 25968), (1082, 20016), (1112, 19476), (1251, 17312), (1623, 13344), (1668, 12984), (2164, 10008), (2224, 9738), (2502, 8656), (3246, 6672), (3336, 6492), (4328, 5004), (4448, 4869)]