163993977

素因数分解:

$3^4\times 7^1\times {\mathrm{223}}^1\times {\mathrm{1297}}^1$

素因数の和:1539

約数の個数: 40

約数和(自身を含む): 281447936

約数和(自身を除く): 117453959

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 223, 567, 669, 1297, 1561, 2007, 3891, 4683, 6021, 9079, 11673, 14049, 18063, 27237, 35019, 42147, 81711, 105057, 126441, 245133, 289231, 735399, 867693, 2024617, 2603079, 6073851, 7809237, 18221553, 23427711, 54664659, 163993977]

約数ペア:

[(1, 163993977), (3, 54664659), (7, 23427711), (9, 18221553), (21, 7809237), (27, 6073851), (63, 2603079), (81, 2024617), (189, 867693), (223, 735399), (567, 289231), (669, 245133), (1297, 126441), (1561, 105057), (2007, 81711), (3891, 42147), (4683, 35019), (6021, 27237), (9079, 18063), (11673, 14049)]