138972213

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{4441}}^1$

素因数の和:4530

約数の個数: 32

約数和(自身を含む): 220323200

約数和(自身を除く): 81350987

約数列:

[1, 3, 9, 19, 27, 57, 61, 171, 183, 513, 549, 1159, 1647, 3477, 4441, 10431, 13323, 31293, 39969, 84379, 119907, 253137, 270901, 759411, 812703, 2278233, 2438109, 5147119, 7314327, 15441357, 46324071, 138972213]

約数ペア:

[(1, 138972213), (3, 46324071), (9, 15441357), (19, 7314327), (27, 5147119), (57, 2438109), (61, 2278233), (171, 812703), (183, 759411), (513, 270901), (549, 253137), (1159, 119907), (1647, 84379), (3477, 39969), (4441, 31293), (10431, 13323)]