81306918

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{5333}}^1$

素因数の和:5370

約数の個数: 72

約数和(自身を含む): 221339664

約数和(自身を除く): 140032746

約数列:

[1, 2, 3, 6, 7, 9, 11, 14, 18, 21, 22, 33, 42, 63, 66, 77, 99, 121, 126, 154, 198, 231, 242, 363, 462, 693, 726, 847, 1089, 1386, 1694, 2178, 2541, 5082, 5333, 7623, 10666, 15246, 15999, 31998, 37331, 47997, 58663, 74662, 95994, 111993, 117326, 175989, 223986, 335979, 351978, 410641, 527967, 645293, 671958, 821282, 1055934, 1231923, 1290586, 1935879, 2463846, 3695769, 3871758, 4517051, 5807637, 7391538, 9034102, 11615274, 13551153, 27102306, 40653459, 81306918]

約数ペア:

[(1, 81306918), (2, 40653459), (3, 27102306), (6, 13551153), (7, 11615274), (9, 9034102), (11, 7391538), (14, 5807637), (18, 4517051), (21, 3871758), (22, 3695769), (33, 2463846), (42, 1935879), (63, 1290586), (66, 1231923), (77, 1055934), (99, 821282), (121, 671958), (126, 645293), (154, 527967), (198, 410641), (231, 351978), (242, 335979), (363, 223986), (462, 175989), (693, 117326), (726, 111993), (847, 95994), (1089, 74662), (1386, 58663), (1694, 47997), (2178, 37331), (2541, 31998), (5082, 15999), (5333, 15246), (7623, 10666)]