73128321

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{307}}^1$

素因数の和:538

約数の個数: 48

約数和(自身を含む): 128128000

約数和(自身を除く): 54999679

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 199, 307, 399, 597, 921, 1197, 1393, 1791, 2149, 2763, 3781, 4179, 5833, 6447, 11343, 12537, 17499, 19341, 26467, 34029, 40831, 52497, 61093, 79401, 122493, 183279, 238203, 367479, 427651, 549837, 1160767, 1282953, 3482301, 3848859, 8125369, 10446903, 24376107, 73128321]

約数ペア:

[(1, 73128321), (3, 24376107), (7, 10446903), (9, 8125369), (19, 3848859), (21, 3482301), (57, 1282953), (63, 1160767), (133, 549837), (171, 427651), (199, 367479), (307, 238203), (399, 183279), (597, 122493), (921, 79401), (1197, 61093), (1393, 52497), (1791, 40831), (2149, 34029), (2763, 26467), (3781, 19341), (4179, 17499), (5833, 12537), (6447, 11343)]