278865153

素因数分解:

$3^3\times 7^1\times {\mathrm{389}}^1\times {\mathrm{3793}}^1$

素因数の和:4198

約数の個数: 32

約数和(自身を含む): 473491200

約数和(自身を除く): 194626047

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 389, 1167, 2723, 3501, 3793, 8169, 10503, 11379, 24507, 26551, 34137, 73521, 79653, 102411, 238959, 716877, 1475477, 4426431, 10328339, 13279293, 30985017, 39837879, 92955051, 278865153]

約数ペア:

[(1, 278865153), (3, 92955051), (7, 39837879), (9, 30985017), (21, 13279293), (27, 10328339), (63, 4426431), (189, 1475477), (389, 716877), (1167, 238959), (2723, 102411), (3501, 79653), (3793, 73521), (8169, 34137), (10503, 26551), (11379, 24507)]