81621918

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{167}}^1\times {\mathrm{431}}^1$

素因数の和:619

約数の個数: 80

約数和(自身を含む): 210760704

約数和(自身を除く): 129138786

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 81, 126, 162, 167, 189, 334, 378, 431, 501, 567, 862, 1002, 1134, 1169, 1293, 1503, 2338, 2586, 3006, 3017, 3507, 3879, 4509, 6034, 7014, 7758, 9018, 9051, 10521, 11637, 13527, 18102, 21042, 23274, 27054, 27153, 31563, 34911, 54306, 63126, 69822, 71977, 81459, 94689, 143954, 162918, 189378, 215931, 244377, 431862, 488754, 503839, 647793, 1007678, 1295586, 1511517, 1943379, 3023034, 3886758, 4534551, 5830137, 9069102, 11660274, 13603653, 27207306, 40810959, 81621918]

約数ペア:

[(1, 81621918), (2, 40810959), (3, 27207306), (6, 13603653), (7, 11660274), (9, 9069102), (14, 5830137), (18, 4534551), (21, 3886758), (27, 3023034), (42, 1943379), (54, 1511517), (63, 1295586), (81, 1007678), (126, 647793), (162, 503839), (167, 488754), (189, 431862), (334, 244377), (378, 215931), (431, 189378), (501, 162918), (567, 143954), (862, 94689), (1002, 81459), (1134, 71977), (1169, 69822), (1293, 63126), (1503, 54306), (2338, 34911), (2586, 31563), (3006, 27153), (3017, 27054), (3507, 23274), (3879, 21042), (4509, 18102), (6034, 13527), (7014, 11637), (7758, 10521), (9018, 9051)]