215516601

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{1481}}^1$

素因数の和:1566

約数の個数: 48

約数和(自身を含む): 351411840

約数和(自身を除く): 135895239

約数列:

[1, 3, 9, 19, 23, 37, 57, 69, 111, 171, 207, 333, 437, 703, 851, 1311, 1481, 2109, 2553, 3933, 4443, 6327, 7659, 13329, 16169, 28139, 34063, 48507, 54797, 84417, 102189, 145521, 164391, 253251, 306567, 493173, 647197, 1041143, 1260331, 1941591, 3123429, 3780993, 5824773, 9370287, 11342979, 23946289, 71838867, 215516601]

約数ペア:

[(1, 215516601), (3, 71838867), (9, 23946289), (19, 11342979), (23, 9370287), (37, 5824773), (57, 3780993), (69, 3123429), (111, 1941591), (171, 1260331), (207, 1041143), (333, 647197), (437, 493173), (703, 306567), (851, 253251), (1311, 164391), (1481, 145521), (2109, 102189), (2553, 84417), (3933, 54797), (4443, 48507), (6327, 34063), (7659, 28139), (13329, 16169)]