21661672

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{101}}^1$

素因数の和:226

約数の個数: 64

約数和(自身を含む): 46267200

約数和(自身を除く): 24605528

約数列:

[1, 2, 4, 8, 17, 19, 34, 38, 68, 76, 83, 101, 136, 152, 166, 202, 323, 332, 404, 646, 664, 808, 1292, 1411, 1577, 1717, 1919, 2584, 2822, 3154, 3434, 3838, 5644, 6308, 6868, 7676, 8383, 11288, 12616, 13736, 15352, 16766, 26809, 32623, 33532, 53618, 65246, 67064, 107236, 130492, 142511, 159277, 214472, 260984, 285022, 318554, 570044, 637108, 1140088, 1274216, 2707709, 5415418, 10830836, 21661672]

約数ペア:

[(1, 21661672), (2, 10830836), (4, 5415418), (8, 2707709), (17, 1274216), (19, 1140088), (34, 637108), (38, 570044), (68, 318554), (76, 285022), (83, 260984), (101, 214472), (136, 159277), (152, 142511), (166, 130492), (202, 107236), (323, 67064), (332, 65246), (404, 53618), (646, 33532), (664, 32623), (808, 26809), (1292, 16766), (1411, 15352), (1577, 13736), (1717, 12616), (1919, 11288), (2584, 8383), (2822, 7676), (3154, 6868), (3434, 6308), (3838, 5644)]