201921018

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:228

約数の個数: 96

約数和(自身を含む): 470074752

約数和(自身を除く): 268153734

約数列:

[1, 2, 3, 6, 13, 19, 26, 38, 39, 57, 71, 78, 101, 114, 142, 202, 213, 247, 303, 361, 426, 494, 606, 722, 741, 923, 1083, 1313, 1349, 1482, 1846, 1919, 2166, 2626, 2698, 2769, 3838, 3939, 4047, 4693, 5538, 5757, 7171, 7878, 8094, 9386, 11514, 14079, 14342, 17537, 21513, 24947, 25631, 28158, 35074, 36461, 43026, 49894, 51262, 52611, 72922, 74841, 76893, 93223, 105222, 109383, 136249, 149682, 153786, 186446, 218766, 272498, 279669, 333203, 408747, 473993, 559338, 666406, 817494, 947986, 999609, 1421979, 1771237, 1999218, 2588731, 2843958, 3542474, 5177462, 5313711, 7766193, 10627422, 15532386, 33653503, 67307006, 100960509, 201921018]

約数ペア:

[(1, 201921018), (2, 100960509), (3, 67307006), (6, 33653503), (13, 15532386), (19, 10627422), (26, 7766193), (38, 5313711), (39, 5177462), (57, 3542474), (71, 2843958), (78, 2588731), (101, 1999218), (114, 1771237), (142, 1421979), (202, 999609), (213, 947986), (247, 817494), (303, 666406), (361, 559338), (426, 473993), (494, 408747), (606, 333203), (722, 279669), (741, 272498), (923, 218766), (1083, 186446), (1313, 153786), (1349, 149682), (1482, 136249), (1846, 109383), (1919, 105222), (2166, 93223), (2626, 76893), (2698, 74841), (2769, 72922), (3838, 52611), (3939, 51262), (4047, 49894), (4693, 43026), (5538, 36461), (5757, 35074), (7171, 28158), (7878, 25631), (8094, 24947), (9386, 21513), (11514, 17537), (14079, 14342)]